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Tux's Links


This is a list of linux weblinks. This webpage is left-copyright, GPLv2. In a nutshell, you are free to copy and modify, but you must make any improvement available (preferably on the internet). For more, read

http://www.gnu.org/licenses/gpl-2.0.html

If you want your page off or have any comments, email me at shengchieh ["AT"] linuxmail [period] org . Be warned: I do not see this email often. Please be patient. Also, I am wwwaaaaayyyyyyyy behind.

This website has been dormant except for links that are useful for me. Also many links are dated. Chances are high I will not add suggested links. Fyi, this website does not get much hits. If you want your website linked, consider wikis and other documentation sites.

DISCLAIMER: I do NOT claim the below websites are 100% accurate. Use their informations at your own risk.

Sheng-Chieh

last updated on 2/4/23





Directories (have multiple things)

http://www.linux.org/
http://www.linux.com/
http://www.justlinux.com/
http://www.linuxplanet.com/linuxplanet/
http://www.tux.org/
http://slashdot.org/
http://www.linuxquestions.org/
http://www.linux-tutorial.info/
http://www.linuxselfhelp.com/index.shtml
http://www.reallylinux.com/
http://desktoplinux.com/
http://www.linuxlinks.com/
http://loll.sourceforge.net/linux/links/
http://www.raiden.net/
http://linux.about.com/
http://www.linuxcompatible.org/
http://www.gooplusplus.com/xsubmenu.php?linux (directory of linux distros + various linux resources)
http://www.linuxuser.co.uk/ (Linux Users & Developer)
http://kerneltrap.org/ (linux, BSD family, etc...)
http://www.kernel.org/ (The Linux Kernel Archives)
http://www.computing.net/ (multi-OS; programming, etc)

Organizations

http://www.opengroup.org/ (The Open Group)
http://www.gnu.org/ (GNU)
http://www.linux-foundation.org/ (Linux Foundation)
http://www.linaro.org/ (Linaro; open source for ARM)
http://www.fsfla.org/ikiwiki/index.en.html (FSFLA)

Documentations

Introduction
http://www.tuxs.org/
http://www.reallylinux.com/docs/windowstolinux.shtml
http://www.linuxnewbieguide.org/
http://www.linux.com/learn/tutorials/297994-help-finding-community-linux-support- (Help! Finding Community Linux Support ; 4/2/10)
http://maketecheasier.com/be-your-own-linux-tech-support/2009/03/05 (How to be Your Own Linux Tech Support; 3/5/09)
http://www.makeuseof.com/tag/a-newbies-initiation-to-linux-free-pdf/ (A Newbie’s Getting Started Guide to Linux; 5/12/09)
http://tldp.org/LDP/intro-linux/html/index.html (Introduction to Linux; 6/6/08)
http://linuxpitstop.com/ (LinuxPitstop)

Courses
http://linuxbasics.org/tutorials/
http://www.collegeathome.com/blog/2008/05/22/open-courseware-for-linux-geeks-50-resources/ (Open CourseWare for Linux Geeks: 50+ Resources)

Desktop
http://www.desktoplinuxconsortium.org/
http://freedesktop.org/wiki/

HowTo/Tutorial
http://www.howtoforge.com/ (HowtoForge)
http://www.ibiblio.org/pub/Linux/ (ibiblio's linux archive)
http://www.brunolinux.com/ (Tips for Linux Explorers)
http://www.tuxfiles.org/
http://linuxsurvival.com/
http://www.linux-tutorial.info/toc
http://www.tuxradar.com/answers (Linux answers to common problems)
http://www.linuxtopia.org/ (Linuxtopia)
http://www.codecoffee.com/tipsforlinux/index-linux.html (advanced topics)
http://www.nobell.org/~gjm/linux/ (advanced topics)
http://www.linuxplanet.com/linuxplanet/tutorials/ (advanced topics)
http://www.linux.com/news/software/applications/279497-youtube-videos-with-linux-part-1 (YouTube Videos With Linux: Part 1)
http://www.linux.com/news/software/applications/279497-youtube-videos-with-linux-part-2 (YouTube Videos With Linux: Part 2)
http://www.linux.com/news/software/applications/279497-youtube-videos-with-linux-part-3 (YouTube Videos With Linux: Part 3)
http://www.unix-tutorials.com/ (unix tutorials)
http://www.tuxradar.com/content/how-linux-works-ultimate-guide (How Linux works: the ultimate guide; 5/21/10)
http://www.linuxquestions.org/linux/answers/
http://www.linux.com/learn/docs/689416-weekend-project-linux-for-beginners (Weekend Project: Linux For Beginners/ 1/11/13)
http://www.everydaylinuxuser.com/2014/01/top-10-tips-for-beginning-linux.html (Top 10 Tips For Beginning Linux; 1/24/14)
http://www.start-linux.com (server)

Reference
http://www.technacular.com/2007/01/19/quick-reference-guides-cheat-sheets-collection/ (Quick Reference Guides / Cheat Sheets Collection; 1/19/07)
http://www.cyberciti.biz/tips/linux-unix-commands-cheat-sheets.html (Top 10 Best Cheat Sheets and Tutorials for Linux / UNIX Commands; 11/5/08)
http://linuxaria.com/pills/cheat-sheet-collection-best (Cheat Sheet collection; 6/17/11)

Wiki
http://en.wikibooks.org/wiki/Linux_For_Newbies
http://en.wikipedia.org/wiki/Linux
http://wiki.linuxquestions.org/wiki/Main_Page
http://widefox.pbwiki.com/ (kernel comparison: linux vs window)

Directory (including howto/tutorial)
http://www.tldp.org/
http://www.linux.org/docs/index.html
http://linux.com/
http://www.linuxselfhelp.com/
http://www.linuxdevcenter.com/ (developer)
http://www.tux.org/
http://www.linux-sxs.org/index2.html

Specifics:

Books and eBooks (IMHO, books go out of date fast. Read free online ebooks first before spending money)
http://www.techbooksforfree.com/linux.shtml (online: list of free linux books)
http://en.flossmanuals.net/ (various free online Floss Manuals)
http://www.linuxtopia.org/online_books/index.html (long list on online books)
http://www.linuxlinks.com/article/20120520043825249/12MoreEnlighteningFreeLinuxBooks-Part1.html (12 More Enlightening Free Linux Books)
http://dsl.org/cookbook/ (The Linux Cookbook, Second Edition)
http://dsl.org/cookbook/cookbook_toc.html (online; The Linux Cookbook; 2001 edition)
http://rute.2038bug.com/index.html.gz (online; Rute User's Tutorial and Exposition; edition 1.0.0)
http://commons.oreilly.com/wiki/index.php/Test_Driving_Linux (Test Driving Linux; free online book; 2005)
http://www.rodsbooks.com/linux-plus/ (Linux + Study Guide; 2009 4th edition)
http://tille.garrels.be/training/tldp/ (online: Introduction to Linux; A Hands on Guide; 2010)
http://www.amazon.com/gp/product/0131480057/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=pber-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=0131480057 (UNIX and Linux System Administration Handbook (4th Edition); 2010)
http://www.amazon.com/gp/product/0596154488/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=blogger0ddf-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=0596154488 (Linux in a Nutshell; 2009 6th edition)
http://www.amazon.com/gp/product/1593272200/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=pber-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=1593272200 (The Linux Programming Interface: A Linux and UNIX System Programming Handbook; 2010 1st edition)
http://www.amazon.com/gp/product/0131367366/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=blogger0ddf-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=0131367366 (Practical Guide to Linux Commands, Editors, and Shell Programming, A; 2009 2nd edition)
http://www.amazon.com/gp/product/0470770198/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=pber-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=0470770198 (Linux All-in-One For Dummies; 2010 4th edition)
http://www.amazon.com/gp/product/1118004426/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&tag=pber-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=1118004426 (Linux Command Line and Shell Scripting Bible; 2011 2nd edition)
http://net-security.tradepub.com/free/w_linu01/prgm.cgi (free ebook: Linux from Scratch)
http://www.gimp.org/books/ (list of GIMP books)
http://tille.garrels.be/training/bash/ (online: Bash Guide for Beginners; updated regularly)
http://it-ebooks.info/ (IT eBooks; free programming ebooks)
https://github.com/vhf/free-programming-books/blob/master/free-programming-books.md (GitHub: free-programming-books)
http://ostatic.com/blog/free-foss-books-our-latest-collection-of-online-guides (Free FOSS Books: Our Latest Collection of Online Guides; 5/4/12)
http://www.linuxlinks.com/article/20140612145838315/ShellScriptingBooks.html (12 Remarkable Free Shell Scripting Books)
http://www.linuxlinks.com/article/20150111035240853/LaTeXBooks.html (14 Excellent Free LaTeX Books)
http://geekguide.linuxjournal.com/ (free ebooks)
https://www.linuxlinks.com/excellent-no-charge-books-learn-about-linux/ (free ebooks)
https://devconnected.com/the-10-best-linux-books-to-read-in-2019/ (The 10 Best Linux Books To Read in 2019)

Blog
http://linux-blog.org/index.php?/archives/247-A-New-User-Guide-to-Linux-Communities.html (A New User Guide to Linux Communities; 2/6/08)
http://www.efytimes.com/e1/fullnews.asp?edid=118296 (20 Reasons Why You Should Switch To Linux!; 10/15/13)
http://opensource.com/life/13/10/contribute-open-source-project-no-code (How non-programmers can contribute to open source projects; 10/24/13)
http://www.pcworld.com/businesscenter/article/205147/fact_or_fiction_top_8_linux_myths_debunked.html (Fact or Fiction? Top 8 Linux Myths Debunked; 9/9/10)
http://www.howtogeek.com/218764/warning-don%E2%80%99t-download-software-from-sourceforge-if-you-can-help-it/ (Warning: Don't Download Software From SourceForge If You Can Help It; 6/8/15)

BSD
http://www.linuxvoice.com/faq-bsd-2/ (FAQ: BSD; Had history been slightly different, you'd be reading FreeBSD Voice today...)

Cloud
http://www.appirio.com/ecosystem/ (Appirio's cloud ecosystem map)

Colleges
http://www.linuxandlife.com/2013/03/us-colleges-with-linux-courses-and.html (US colleges with Linux courses and degree programs; 3/3/13)

Credit Card
http://www.linuxfoundation.org/programs/linux-credit-card>

Email
http://www.linuxwaves.com/FREE_Email/

Forums
http://linuxaria.com/article/linux-forums-etiquette?lang=en (Linux Forums Etiquette; 8/18/12)
http://linuxmigrante.blogspot.it/2011/02/new-to-linux-heres-your-hitchhikers.html (New to Linux? Here's Your Hitchhiker's Guide to Linux Forum Galaxy!; 2/11/11)
http://catb.org/~esr/faqs/smart-questions.html (How To Ask Questions The Smart Way)
http://www.linuxquestions.org/questions/index.php
http://www.linuxselfhelp.org/phpBB/
http://www.justlinux.com/forum/index.php
http://www.linux-tutorial.info/forums.html
http://www.linux.org/forums/
http://tech.groups.yahoo.com/group/linuxwaves/ (linuxwaves via yahoo tech forum)
http://www.tux.org/discuss.html (mailing lists)
http://desktoplinuxreviews.com/forum/index.php (Linux Desktop Reviews)
http://www.kde-forum.org/index.html (KDE)
http://forum.xfce.org/ (XFCE)
http://en.libreofficeforum.org/forum (libreoffice)
http://www.oooforum.org/ (OpenOffice.org)
http://forum.videohelp.com/linux-f19.html (video)
http://forums.creativecow.net/viewforum/119 (media)
http://www.phoronix.com/forums/ (hardware)
http://fixunix.com/ (Linux, Window, Unix, System sub-forums, etc)
http://www.howtoforge.com/forums/ (developers)
http://www.computing.net/foruxfcems/ (linux, window, macs, programming, etc)
http://discuss.extremetech.com/forums/ (linux, window, audio, HDTV, etc)
http://www.java-forums.org/forum.php (java)
http://www.linux-sxs.org/index2.html-> Forums (various mailing list including linux & BSD)
http://www.nuxified.org/forum

For applications, I put the respective forums in the software - howto section. For distros, I put the respective forums in the distribution list. If you do not see a forum/mailing list for a particular distro or application, check their main site. Most distros and many applications have their own forum, mailing list, wiki, and/or documentation.

Game
http://www.gamingonlinux.com/ (Gaming on Linux)

History
http://www.linuxjournal.com/article/10724 (Distributions; A Brief History; 8/1/10)
http://www.groklaw.net/staticpages/index.php?page=20051013231901859 (The daemon, the gnu, and the penguin by Dr. Peter H. Salus; October 20 2008)
http://www.linux-netbook.com/linux/timeline/ (Interactive Timeline of the History of Linux; 3/14/14)
http://www.levenez.com/unix/ (Unix History)

Jobs (employment)
http://jobs.linux.com/ (Linux.com Job Board)
https://jobs.linuxcareer.com/ (linuxcareer.com Job Board)

License
http://www.linux.com/news/biz-os/legal/28138-licensing-101-for-open-source-projects-pick-a-license (Licensing 101 for Open Source Projects--Pick a License; 7/16/09)
http://choosealicense.com/ (Choosing an OSS license doesn't need to be scary)

Music
https://opensource.com/article/19/3/free-music-guide (The current state of free music in 2019; 01 Mar 2019 Chris Hermansen)

News (including magazines)
http://linuxtoday.com/
http://lxer.com/
http://www.linux.org/news/index.html
http://www.serverwatch.com/ (server)
http://fosswire.com/ (FOSSwire; blog)
http://www.linuxwaves.com/Newsstand/ (Commercial; various linux magazines)

Privacy (See privacy in Software HowTo and Others)
http://www.linux.org/threads/tor-part-1-is-it-for-me.4532/ (Tor: Part 1 - Is it for me?; 9/6/13)
http://www.linux.org/threads/tor-part-3-becoming-an-onion.4543/ (Tor: Part 3 - Becoming An Onion; hunt for part 2; 9/13/13)

Openions
http://linux.oneandoneis2.org/LNW.htm (Linux is Not Windows)
http://www.datamation.com/open-source/does-loving-linux-make-us-dislike-windows-1.html (Does Loving Linux Make Us Dislike Windows?; 8/8/11)

Secure Boot
http://lxer.com/module/newswire/view/177429/ (Linux Has Not Won, Microsoft is as Dangerous as Ever, Fie on Secure Boot; 12/4/12)

Security
http://www.theregister.co.uk/security/security_report_windows_vs_linux/
http://www.theregister.co.uk/2004/10/22/linux_v_windows_security/
http://project.honeynet.org/
http://linuxmafia.com/~rick/faq/index.php?page=virus (Virus)
http://www.techthrob.com/tech/linuxav.php (Do I Need an AntiVirus Program on Linux?)
http://www.linux.com/news/software/applications/8261-note-to-new-linux-users-no-antivirus-needed (Note to new Linux users: No antivirus needed)
http://blog.eracc.com/2009/10/23/gnulinux-security-linux-house-vs-microsoft-house/ (GNU/Linux Security: Linux House vs Microsoft House; 10/23/09)
http://blogs.techrepublic.com.com/opensource/?p=1415 (Setting the record straight on sudo; 4/5/10)
http://www.unixmen.com/meet-linux-viruses/ (Meet Linux Viruses; 7/26/12)
http://mylinuxbook.com/linux-non-root-exploits (Linux Non Root Exploits - 4 Ways In which Even A Normal User Can Cause Real Damage To Your Linux System; 6/6/13)
http://www.zdnet.com/linux-and-botnets-its-not-linuxs-fault-7000027538/ (Linux and botnets: It's not Linux's fault!; 3/20/14)
http://thelinuxrain.com/articles/linux-malware-and-antivirus (Linux Malware And Antivirus; 6/12/14)

Speech
http://www.w3.org/2005/Incubator/htmlspeech/ (HTML Speech Incubator Group)

Support
http://www.pantek.com/index.php (commercial; Pantek: Expert IT Services for Linux and Open Source)

Users Group
http://linux.org.mt/ (Malta)

Unix (see BSD too)
http://www.howtogeek.com/190773/htg-explains-whats-the-difference-between-linux-and-bsd/ (HTG Explains: What's the Difference Between Linux and BSD?; 6/9/14)
http://www.makeuseof.com/tag/linux-vs-unix-crucial-differences-matter-linux-professionals/ (Linux Vs Unix: The Crucial Differences That Matter To Linux Professionals; 11/18/14)
Window Equivalent
http://www.linuxrsp.ru/win-lin-soft/table-eng.html
http://alternativeto.net/software/?profile=all&license=free (alternativeTo)
http://www.tecmint.com/windows-alternatives-for-linux/ (Alternatives of 13 Most Commonly Used Windows Applications for Linux; 5/29/13)

Hardware HowTo

Administration
http://www.thegeekstuff.com/2010/12/50-unix-linux-sysadmin-tutorials/ (50 UNIX / Linux Sysadmin Tutorials; 12/25/10)
http://lnag.sourceforge.net/ (LINUX NEWBIE ADMINISTRATOR GUIDE)
http://www.comptechdoc.org/os/linux
http://www.linuxuser.co.uk/tutorials/linux-system-administration-part-1 (Linux system administration part 1; 6/24/14)
http://www.linuxuser.co.uk/tutorials/linux-system-administration-part-2 (Linux system administration part 2; 6/28/14)

Backups
http://www.mikerubel.org/computers/rsync_snapshots/ (rsync; 2004)
http://www.linuxfocus.org/English/March2004/article326.shtml (rsync)
http://www.tldp.org/HOWTO/Linux-Complete-Backup-and-Recovery-HOWTO/ (Linux Complete Backup and Recovery HOWTO; 2006)
http://www.tldp.org/LDP/lame/LAME/linux-admin-made-easy/backup-and-restore.html (Backup and Restore Procedures; date???)
http://www.batteryuniversity.com/ (Battery University)

Battery
http://batteryuniversity.com/ (Battery University)
http://www.ghacks.net/2009/09/01/gain-more-battery-life-from-your-linux-based-laptop-with-powertop/ (Gain more battery life from your Linux-based laptop with powertop; 9/09)
http://www.techradar.com/news/computing/pc/make-your-linux-netbook-battery-last-longer-661874 (Make your Linux netbook battery last longer; 1/8/10)
http://productivegeek.com/articles/how-to-maximize-the-battery-life-on-your-linux-laptop/ (How to Maximize the Battery Life on Your Linux Laptop; 10/18/10)
http://www.howtogeek.com/55185/how-to-maximize-the-battery-life-on-your-linux-laptop/ (How to Maximize the Battery Life on Your Linux Laptop; 10/18/10)
http://www.tecmint.com/powertop-monitors-linux-laptop-battery-usage/ (PowerTop - Monitors Total Power Usage and Improve Linux Laptop Battery Life; 10/7/16)
https://www.ostechnix.com/how-to-check-laptop-battery-status-in-terminal-in-linux/ (How To Check Laptop Battery Status In Terminal In Linux; 12/8/16)

Benchmarking
http://openbenchmarking.org/ (OpenBenchmarking.org)
http://www.tux.org/~mayer/linux/bmark.html (Linux/Unix nbench)
http://www.nobell.org/~gjm/linux/benchmark.html (Linux Benchmark Notes)
http://kernel-perf.sourceforge.net/ (Linux Kernel Performance)

BIOS
http://www.ibm.com/developerworks/linux/library/l-lpic1-101-1/index.html?ca=drs- (Learn Linux, 101: Configure hardware settings; 10/28/16)

Bluetooth
http://people.csail.mit.edu/albert/bluez-intro/> (An Introduction to Bluetooth Programming)
http://www.bluez.org/ (BlueZ Official Linux Bluetooth protocol stack)
https://wiki.debian.org/HOWTO/BluetoothMouse ([debian] HOWTO BluetoothMouse)

Boot
http://jhansonxi.blogspot.com/2010/09/your-linux-system-keeps-falling-and-it.html (Stubborn Tech Problem Solving; 9/3/10)

Boot Loader
http://www.gnu.org/software/grub/manual/grub.html (GNU GRUB Manual)
http://www.linuxbsdos.com/2014/06/02/how-to-delete-boot-managers-from-a-uefi-boot-menu/ (How to delete boot managers from a UEFI boot menu; 6/2/14)

CD/DVD Burning
http://www.yolinux.com/TUTORIALS/LinuxTutorialCDBurn.html (Burning a CD)
http://www.troubleshooters.com/linux/coasterless_dvd.htm (Coasterless DVD Burning)
http://www.digitalfaq.com/media/index.htm (Video Media Guides)
http://www.linux.com/news/software/applications/280100-using-brasero-for-data-backup-and-iso-burning (Using Brasero for data backup and ISO burning; 1/26/10)

Clean
http://www.linuxinsider.com/story/71010.html?wlc=1287069696&wlc=1290889660 (3 Apps That Keep Linux Squeaky Clean; 10/13/10)

Clock
http://www.techradar.com/us/how-to/computing/how-to-keep-your-linux-system-clock-accurate-1305749 (How to keep your Linux system clock accurate; 10/7/15)

Clusters
http://www.beowulf.org/ (beowolf)

Configuration
http://www.acpi.info/ (ACPI [Advanced Configuration & Power Interface])

Data Recovery
http://www.antrix.net/journal/techtalk/reiserfs_data_recovery_howto.html (ReiserFS)
http://linuxshellaccount.blogspot.com/2008/08/recovering-deleted-files-by-inode.html (Recovering Deleted Files By Inode Number In Linux And Unix)
http://www.linux.com/learn/tutorials/397719-repair-a-linux-file-system-and-reclaim-deleted-files (Reclaim Deleted Files and Repair Filesystems on Linux; 1/25/11)

Disk (Hard Drive)
http://linuxaria.com/article/5-ways-to-check-your-disk-usage-on-linux?lang=en (5 ways to check your disk usage on Linux; 12/9/12)
http://www.extremetech.com/computing/170748-how-long-do-hard-drives-actually-live-for (How long do hard drives actually live for?)
https://www.maketecheasier.com/monitor-hard-disk-health-linux/ (How to Check and Monitor Hard Disk Health on Linux with Smartmontools; 4/14/15)
https://www.backblaze.com/blog/how-long-do-disk-drives-last/ (How long do disk drives last?; 11/12/13)
https://www.tecmint.com/check-linux-hard-disk-bad-sectors-bad-blocks/ (How to Check Bad Sectors or Bad Blocks on Hard Disk in Linux; 10/26/16)

Drivers
http://www.realtek.com.tw/downloads/dlhd-2.aspx?lineid=2004052&famid=2004052&series=2004061&Software=True (modem; Computer Peripheral & Multimedia ICs)
http://www.linux-drivers.org/ (graphics, audio, network, USB, printers, etc)

Email
http://xmodulo.com/2014/01/how-mail-server-works.html (How a mail server works; 1/6/14)

Fax
http://lucasmanual.com/mywiki/FaxServer (HylaFAX)

Games
http://icculus.org/lgfaq/ (Linux Gamers' FAQ)

Graphics
http://wiki.linuxquestions.org/wiki/XF86Config (XFree86)
http://wiki.linuxquestions.org/wiki/OpenGL (OpenGL)
http://dri.sourceforge.net/doc/DRIbeginner.html (DRI Beginner's Guide)
http://www.xfree86.org/4.8.0/ (Documentation for XFree86® version 4.8.0)
https://wiki.ubuntu.com/X/Troubleshooting/IntelPerformance (Troubleshooting Intel graphics performance issues)

Hardware
http://www.opencompute.org/ (Open Compute Project; open hardware)

Hardware Compatibility
http://www.linux-drivers.org/ (Linux Hardware Compatibility Lists)
http://www.tldp.org/HOWTO/Hardware-HOWTO/ (general; 5/22/07)
http://www.eskimo.com/~lo/linux/hardwarelinks.html (general; old???)
Red Hat https://hardware.redhat.com/hwcert/index.cgi
Debianhttp://www.debian.org/doc/manuals/debian-faq/ch-compat.en.html#s-arches
FreeBSD-5.0-i386http://www.freebsd.org/releases/5.0R/hardware-i386.html
OpenBSD-i386http://openbsd.org/i386.html#hardware
NetBSD-Portshttp://netbsd.org/Ports/

Hardware info
http://www.tuxarena.com/intro/sysinfo.php (Show System/Hardware Information in Linux; 3/23/15)
http://www.itworld.com/virtualization/419480/how-interpret-cpu-load-linux (How to interpret CPU load on Linux; 5/19/14)
http://www.binarytides.com/linux-commands-hardware-info/ (16 commands to check hardware information on Linux; 4/8/14)
http://www.binarytides.com/linux-cpu-information/ (8 commads to check cpu information on Linux; 3/16/14)
http://www.binarytides.com/inxi-system-information-linux/ (Inxi is an amazing tool to check hardware information on Linux; 1/8/14)
http://www.linux.com/learn/tutorials/620416:discovering-and-monitoring-hardware-in-linux- (Discovering and Monitoring Hardware in Linux; 8/17/12)
http://www.webupd8.org/2011/07/how-to-get-hardware-information-in.html (How To Get Hardware Information In Linux; 7/27/11)
http://maketecheasier.com/gather-hardware-information-in-linux/2011/05/12 (How to Gather Hardware Information in Linux 5/12/11)

Hotplugging
http://linux-hotplug.sourceforge.net/

Job (linux)
https://jobs.linuxcareers.com/ (linuxcareers)

Icon
http://linuxreviews.org/man/idesk/ (Manpage of idesk)
http://linuxreviews.org/man/ideskrc/ (Mangage of ideskrc)

Kernel
http://linuxaria.com/article/the-linux-kernel-vs-commercial-kernels?lang=en (The Linux Kernel vs Commercial kernels; 12/20/11)
http://www.makeuseof.com/tag/linux-kernel-explanation-laymans-terms/ (The Linux Kernel: An Explanation In Layman's Terms; 6/3/14)

Laptop
http://www.linux-laptop.net

Log files
https://www.rosehosting.com/blog/linux-log-files/ (An introduction to Linux log files; 11/7/16)

Memory
http://www.go2linux.org/linux/2010/12/how-find-which-process-eating-ram-memory-linux-858 (How to find which process is eating RAM in Linux; 12/7/10)
http://techarena51.com/index.php/linux-memory-usage/ (A hitchhikers guide to troubleshooting linux memory usage; 6/2/14)
http://www.blackmoreops.com/2014/10/28/delete-clean-cache-to-free-up-memory-on-your-slow-linux-server-vps/ (Delete clean cache to free up memory on your slow Linux server, VPS; 10/28/14)

Modem (problems may occur due to WinModem)
http://www.linmodems.org/ (Linux Winmodem Support)
http://www.tldp.org/HOWTO/Winmodems-and-Linux-HOWTO.html (The Winmodems-and-Linux HOWTO; 2001)
http://linmodems.technion.ac.il/ (Linmodems support)
http://www.linuxant.com/ -> drivers -> Conexant (Conexant)
http://www.yolinux.com/TUTORIALS/LinuxTutorialAOL.html (AOL)
http://axion.physics.ubc.ca/ppp-linux.html (PPP [2002])
http://linux.die.net/man/1/minicom (minicom manpage)
http://www.cyberciti.biz/tips/connect-soekris-single-board-computer-using-minicom.html (Linux / UNIX minicom Serial Communication Program)
http://pcmcia-cs.sourceforge.net/ -> SUPPORTED.CARDS (PCMCIA)

Motherboard (including Raspberry Pi)
http://fritzing.org/ (Fritzing; open-source hardware initiative)
http://www.howtogeek.com/65963/what-is-arduino/ (What is Arduino? Learn About This Open-Source Electronics Platform; 10/3/11)
https://www.linux.com/learn/tutorials/536179-weekend-project-learning-ins-and-outs-of-arduino (Weekend Project: Learning Ins and Outs of Arduino; 1/13/12)
http://www.linuxuser.co.uk/news/raspberry-pi-complete-manual-out-now (Raspberry Pi Complete Manual out now!; 4/1/14)
http://www.linuxuser.co.uk/tutorials/how-to-set-up-raspberry-pi/ (How to set up Raspberry Pi ; 4/23/12)
http://www.h-online.com/open/news/item/Hardware-Hacks-Learning-the-Pi-DSLR-hacking-and-the-Cubieboard-1698644.html (Hardware Hacks: Learning the Pi, DSLR hacking and the Cubieboard; 9/4/12)
http://www.techradar.com/news/computing/pc/raspberry-pi-tutorial-how-to-do-more-1095946 (Raspberry Pi tutorial: how to do more; 9/17/12)
http://picru.st/ (Pi Crust; make your own add-on for Raspberry Pi)
http://www.everydaylinuxuser.com/2012/12/everyday-linux-user-guide-to-setting-up.html ( Everyday Linux User Guide To Setting Up The Raspberry PI; 12/31/12)
http://www.h-online.com/open/news/item/Educational-manual-for-Raspberry-Pi-released-1776615.html (download from raspberrypi.org; Raspberry Pi Education Manual ; 1/3/13)
http://opensource.com/life/15/3/pi-day-special-7-raspberry-pi-pieces (Pi Day special: 7 Raspberry Pi pieces [documentation links]; 3/14/15)
http://www.techrepublic.com/article/raspberry-pi-zero-wireless-the-smart-persons-guide/ (Raspberry Pi Zero W: The smart person's guide)
http://pandaboard.org/ (PandaBoard)
https://www.linux.com/blog/2018/5/6-industrial-touch-panel-computers-based-raspberry-pi (6 Industrial Touch-Panel Computers Based on the Raspberry Pi; 5/17/18)

Mounting
http://itc.virginia.edu/os/linux/mount.html (Mounting File Systems Under Linux; 8/4/14)

Networking
http://www.yolinux.com/TUTORIALS/LinuxTutorialNetworking.html (Linux Networking)
http://www.howtogeek.com/190148/8-common-network-utilities-explained/ (8 Common Network Utilities Explained; 6/3/14)

NFS
http://nfs.sourceforge.net/ (Linux NFS Overview)
http://nfs.sourceforge.net/nfs-howto/ (Linux NFS-HOWTO)

Partition
http://tldp.org/HOWTO/Partition/index.html (Linux Partition HOWTO; note ch 4.4 on swap size; 2005)
http://wiki.novell.com/index.php/File_System_Primer (File System Primer; note ch 4 on file types; 2007)

Password
http://xmodulo.com/2013/12/set-password-policy-linux.html (How to set password policy on Linux; 12/30/13)

Power
http://www.linuxplanet.com/linuxplanet/tutorials/7174/1/ (Power to the PC: How to Select a Computer Power Supply; 9/16/10)
http://www.datamation.com/open-source/using-linux-to-improve-energy-efficiency-and-productivity-1.html (Using Linux to Improve Energy Efficiency and Productivity; 8/22/11)

Solid State Drive
http://www.makeuseof.com/tag/optimize-linux-ssds/ (How To Optimize Linux For SSDs; 6/24/14)

Sound
http://www.alsa-project.org/ (ALSA)
https://www.freedesktop.org/wiki/Software/PulseAudio/ (PulseAudio)

Swap
http://linux.about.com/od/howtos/fl/Do-You-Need-A-Swap-Partition.htm (Do You Need A Swap Partition?; 2015)
http://www.tecmint.com/commands-to-monitor-swap-space-usage-in-linux/ (8 Useful Commands to Monitor Swap Space Usage in Linux; 10/12/16)

Temperature
http://www.ghacks.net/2010/08/06/keeping-track-of-your-pcs-temperature-in-linux/ (Keeping track of your PCs temperature in Linux; 8/6/10)

Video
http://www.fonerbooks.com/video.htm (Troubleshooting a Video Adapter and Computer Monitor; 2009)

USB Drive
http://www.tildehash.com/?article=liveusb-drives-why-how-to-and-where-at(LiveUSB Drives: Why, How-to, and Where At; 7/3/10)
http://www.ubuntubuzz.com/2015/04/create-multiboot-os-usb-with-multisystem-in-linux.html (Create Multiboot OS USB with Multisystem in Linux; 4/15)
http://www.linux-usb.org/ (linux USB)

Wireless
http://linux-wless.passys.nl/index.php (Linux wireless LAN support; compatibility list)
http://grouper.ieee.org/groups/802/11/ (IEEE 802 standards)
http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_:_Ch13_:_Linux_Wireless_Networking (quick howto)
http://linux-wless.passys.nl/ (Linux wireless LAN support)
http://www.linux.com/learn/tutorials/374514-control-wireless-on-the-linux-desktop-with-these-tools (How to Configure Wireless on Any Linux Desktop ; 11/10/10)
http://www.linuxjournal.com/content/wi-fi-command-line (12/17/11)
http://www.technewsworld.com/story/Widening-Your-WiFi-Networks-Range-74433.html (Widening Your WiFi Network's Range; 2/16/12)
http://www.consumer.ftc.gov/articles/0014-tips-using-public-wi-fi-networks (Tips for Using Public Wi-Fi Networks; 3/14)
http://www.forbes.com/sites/amadoudiallo/2014/03/04/hackers-love-public-wi-fi-but-you-can-make-it-safe/ (How To Avoid Data Theft When Using Public Wi-Fi; 3/4/14)
http://www.howtogeek.com/204697/wi-fi-security-should-you-use-wpa2-aes-wpa2-tkip-or-both/ (Wi-Fi Security: Should You Use WPA2-AES, WPA2-TKIP, or Both?; 12/12/14)
https://www.linux.com/learn/tips-and-tricks-get-most-out-your-linux-wifi (Tips and Tricks to Get the Most out of Your Linux WiFi; 12/10/15)
http://www.reviews.com/best-wireless-router/ (The Best Wireless Router; review)

Hardware

Graphics Board
http://www.zotacusa.com/ (commercial; Zotac)

Motherboard
http://www.arduino.cc/ (non-commercial; Arduino)
http://www.minnowboard.org/ (non-commercial; MinnowBoard)
http://www.parallella.org/ (commercial; parallel computing; Parallella)
https://www.sparkfun.com/ (commercial; SparkFun; [Arduino stuffs])
http://www.mouser.com/MinnowBoard/ (commercial; Mouser Electronics; MinnowBoard distributor)
http://beagleboard.org/ (commercial; BeagleBoard)
http://www.hummingbirdkit.com/ (commercial; Hummingbird robotics kit)
http://pibow.com/ (commercial; Pimoroni; sells pibow [raspberry pi cover])
http://www.coridium.us/index.html (commercial; Coridium; PRO board)
https://www.olimex.com/(commercial; Olimex; various motherboard including A13 board, LIME, Arduino)
https://compulab.co.il/ (commercial; CompuLab)
http://www.hardkernel.com (commercial; ODROID)
http://www.myirtech.com/ (commercial; MYIR)
http://www.aaeon.com/en/ (commercial; AAEON Technology, Inc; tablet, embeddee)
https://www.gumstix.com/ (commercial; Gumstix; various boards including pepper board)
http://www.acrosser.com/index.php -> (commercial; Acrosser; Single Board Computer)
http://www.artila.com/ (commercial; Artila Electronics)
https://en.wikipedia.org/wiki/List_of_single-board_computers (List of single-board computers [wikipedia])
https://www.pine64.org/ (commercial; PINE64)

Robot
http://multiplo.org/ (commercial; open source; Multiplo LLC)
http://www.makeblock.cc (commercial; open source???; makeblock)

Software HowTo

Accounting
https://wiki.gnucash.org/wiki/GnuCash (non-commercial: GNUcash; wiki)

Archive
http://www.tecmint.com/command-line-archive-tools-for-linux/ (5 Best Command Line Archive Tools for Linux - Part 1; 6/1/14 Updated 1/3/15)

Browsers
https://support.mozilla.org/en-US/kb/keyboard-shortcuts-perform-firefox-tasks-quickly (Keyboard shortcuts - Perform common Firefox tasks quickly)
http://lesliefranke.com/files/reference/firefoxcheatsheet.html (firefox cheat sheet)
http://www.junauza.com/2009/03/three-easy-steps-to-set-up-anonymous.html (Anonymous Web Browsing; March 08, 2009)
http://tuxarena.blogspot.com/2009/04/3-tweaks-to-speed-up-firefox-3-and-free.html (3 Tweaks to Speed Up Firefox 3 and Free Memory; 4/30/09)
http://www.verot.net/firefox_tmpfs.htm (Speed up Firefox with tmpfs)
http://webupd8.blogspot.com/2009/05/speed-up-firefox-by-mounting-profile-in.html (Speed up Firefox by mounting the profile in tmpfs; 5/3/09)
http://www.techrepublic.com/article/firefox-helps-you-cover-your-assets-with-latest-tracking-protection-feature/ (Firefox helps you cover your assets with latest Tracking Protection feature; 4/10/15)
http://www.pcworld.com/article/2960741/browsers/tested-how-flash-destroys-your-browsers-performance.html (Tested: How Flash destroys your browser's performance; 8/7/15)
http://kb.mozillazine.org/Firefox_:_FAQs_:_About:config_Entries (firefox; About:config)
https://www.opera.com/docs/switches/ (opera; key shortcut)
http://tuxarena.blogspot.com/2009/08/5-opera-tips-and-tricks.html (5 Opera Tips and Tricks; 8/10/09)
https://www.howtoforge.com/tutorial/vivaldi-browser-introduction-on-linux/ (An Introduction to Vivaldi Browser on Linux; 9/6/16)

CD/DVD Burner
http://www.techdrivein.com/2010/11/nero-linux-4-never-knew-nero-had-linux.html (Nero Linux 4 - Never Knew Nero had a Linux Version!; 10/24/10)

Children
http://maketecheasier.com/configure-linux-for-children/2010/07/21 (How to Configure Linux for Children; 7/21/10)

Compiling
http://www.tuxfiles.org/linuxhelp/softinstall.html (Installing software from source in Linux)

Container
http://thenewstack.io/life-post-container-world/ (Life in a Post-Container World and Why Linux Will Play a Diminished Role; 9/15)

Desktop Environment
http://wiki.xfce.org/howto/customize-menu (Customize the Xfce menu)
http://pclosmag.com/download.php?f=XfceTipsTricksSE.pdf (PCLinuxOS magazine, but all about XFCE)
https://wiki.gnome.org/ (GNOME Wiki)
http://wiki.xfce.org/ (XFCE Wiki)
http://xahlee.info/linux/linux_xfce_keyboard_shortcuts.html (Linux: Xfce Keyboard Shortcuts)

Directory Content Manager
http://sixrevisions.com/git/interactive-git-tutorials/ (Interactive Git Tutorials1/5/15)

Download
http://www.linuxwaves.com/Download/ (various)

Email
http://www.howtoforge.com/how-to-encrypt-mails-with-ssl-certificates-s-mime (How To Encrypt Mails With SSL Certificates (S/MIME); 11/29/11)
http://www.howtoforge.com/thunderbird-email-encryption-with-gnupg2 (Thunderbird Email Encryption with GnuPG2; 6/20/14)
https://www.linux.com/learn/tutorials/784165-how-to-encrypt-email-in-linux (How to Encrypt Email in Linux; 8/15/14)
https://linuxconfig.org/encrypt-your-email-with-gpg-thunderbird-and-enigmail (Encrypt Your Email With GPG, Thunderbird, and Enigmail; 4/3/17)
http://www.everydaylinuxuser.com/2016/11/an-everyday-linux-user-guide-to.html (An Everyday Linux User Guide To The Thunderbird Email Client; 11/2/16)
https://fedoramagazine.org/4-addons-privacy-thunderbird/ (4 add-ons to improve your privacy on Thunderbird)

File Permission
http://www.zzee.com/solutions/linux-permissions.shtml

File Structures and Types
http://www.linuxbsdos.com/2011/09/18/guide-to-disks-and-disk-partitions-in-linux/ (Guide to disks and disk partitions in Linux; 9/18/11)
http://www.tecmint.com/linux-directory-structure-and-important-files-paths-explained/ (Linux Directory Structure and Important Files Paths Explained; 1/7/15)
http://www.howtogeek.com/117435/htg-explains-the-linux-directory-structure-explained/ (The Linux Directory Structure Explained; 9/21/16)
http://www.2daygeek.com/linux-directory-structure-file-system-hierarchy/# (Linux Directory Structure (File System Hierarchy) Explained with Examples; 9/27/19)
http://en.wikipedia.org/wiki/Comparison_of_file_systems (Comparison of file systems) (Comparison of file systems; current)

File Transfer Protocol
https://wiki.filezilla-project.org/Main_Page (FileZilla Wiki)

Flash
http://www.webupd8.org/2015/01/fresh-player-plugin-sees-new-release.html#more (Fresh Player Plugin Sees New Release (Pepper Flash Wrapper For Firefox); 1/14/15)

Graphics
http://www.gnuplot.info/documentation.html (GNUplot - docs)
http://www.duke.edu/~hpgavin/gnuplot.html (GNUplot - docs)
http://meetthegimp.org" (videopodcast tutorial of GIMP)
http://gimp-savvy.com/BOOK/index.html (GIMP - docs)
http://www.nuclecu.unam.mx/~federico/gimp/links.html (GIMP - docs)
http://www.tech-edv.co.at/lunix/gimp.html (GIMP - docs)
http://carol.gimp.org/gimp2/basics/gimplite/ (GIMP - docs)
http://mylinuxbook.com/gimp-image-editor/ (GIMP - docs)
http://linux.suramya.com/tutorials/Install_GIMPShop/ (GIMPshop - docs)
http://www.gimptalk.com/ (GimpTalk: docs, forum, arts, etc) http://gimp-tutorials.net/ (gimp-tutorials.net: tutorial, forum, downloads)
http://www.gimpusers.com/news/2009-02-28/exceptional-plugin-photo-restore.html (Exceptional new plugin to restore faded transparencies/photos; 2/28/09)
http://www.linuxloop.com/2009/08/21/3-gimp-plugins-for-photographers/ (3 Gimp Plugins For Photographers; 8/21/09
http://ostatic.com/blog/free-tools-for-getting-started-with-the-mighty-gimp-graphics-editor (Free Tools for Getting Started with the Mighty GIMP Graphics Editor; 11/17/11)
http://www.unixmen.com/linux-tutorials/1583-30-great-tutorials-for-gimp (30 Great tutorials for GIMP; 2011)
http://ostatic.com/blog/free-tools-for-getting-started-with-the-mighty-gimp-graphics-editor (Free Tools for Getting Started with the Mighty GIMP Graphics Editor; 11/17/11)
http://ostatic.com/blog/gimp-guides-how-to-get-the-most-out-of-a-great-free-graphics-application (GIMP Guides: How to Get the Most Out of a Great, Free Graphics Application; 2/28/13)
http://gimpology.com/ (gimpology: HowTos)
http://puteraaladin.blogspot.com/ (alot of gIMP stuffs)
https://www.gimp.org/tutorials/Color2BW/ (Converting Color Images to B&W)
http://maketecheasier.com/getting-started-with-inkscape/2010/04/06 (Inkscape; 4/6/10)
http://www.packtpub.com/article/getting-started-with-inkscape (Inkscape tutorial)
http://www.unixmen.com/31-best-tutorials-of-inkscape-ii/ (31 Great Tutorial for Inkscape!)

Graphics card
http://www.linuxjournal.com/content/introduction-opengl-programming (An Introduction to OpenGL Programming; 11/12/14)

Kernel
http://www.ibm.com/developerworks/linux/library/l-linux-kernel/index.html (Anatomy of the Linux kernel; 06 June 2007)
http://www.howtogeek.com/howto/31632/what-is-the-linux-kernel-and-what-does-it-do/ (What is the Linux Kernel and What Does It Do?; 10/26/10)

Live CD/DVD/USB
http://www.linux-live.org/ (Linux Live)
http://www.livecdlist.com/wiki/index.php/LiveCD_Creation_Resources (LiveCD Creation Resources)
http://www.gooplusplus.com/multiboot-2013/ (YUMI-based Multiboot 2/4/8GB Instructions and Documentation)
http://www.gooplusplus.com/multiboot-2013-meteor/ (YUMI-based Multiboot 4GB METEOR Instructions and Documentation)
http://www.gooplusplus.com/multiboot-2013-mini/ (YUMI-based Multiboot 650MB MINI Instructions and Documentation)
https://bipedu.wordpress.com/2013/06/22/live-usb-linux-with-dd-command/ (live USB linux with dd command; 6/22/13) http://it.toolbox.com/blogs/enlightenment/howto-create-a-bootable-linux-media-using-the-dd-command-65907 (HOWTO: Create a bootable Linux Media using the dd Command; 3/9/15)
https://www.2daygeek.com/bootiso-a-simple-bash-script-to-securely-create-a-bootable-usb-device-in-linux-from-iso-file/# (BootISO - A Simple Bash Script To Securely Create A Bootable USB Device From ISO File; 11/8/18)

Mathematic
http://www.calculatorium.com/mathjax-quick-start-tutorial/ (MathJax Quick Start Tutorial; 8/19/13)

Memory
http://techthrob.com/2014/01/understanding-linux-memory-usage/ (Understanding Linux Memory Usage: Free, Cached, Buffered, and Hardware; 1/21/14)

Migration (from Window)
http://www.linux.com/learn/new-user-guides/25392-linux-migration-guide-finding-linux-equivalents-to-your-favorite-window (7/2/09; Linux Migration Guide: Finding Linux Equivalents to Your Favorite Windows Programs)

Music
https://www.cyberciti.biz/faq/delete-remove-santa-hat-in-vlc-player-in-windows-linux-macos/\ (Remove Santa Hat in VLC Player Permanently; 12/20/19)
http://tuxarena.blogspot.com/2009/04/review-moc-text-based-audio-player.html (Review: MOC, text-based audio player; 4/24/09)
http://polishlinux.org/apps/cli/moc-console-audio-player-for-linux/ (MOC — Console Audio Player for Linux; 5/15/07)
http://www.tuxarena.com/2014/03/moc-playing-music-in-the-terminal/ (MOC - Playing Music in the Terminal; 3/24/14)

Network
http://www.ghacks.net/2010/04/20/how-do-i-find-my-network-information-in-linux/ (How do I find my network information – in Linux? 4/20/10)
http://www.itworld.com/operating-systems/411332/unix-more-networking-basics-beginner (Unix: More networking basics for the beginner; 3/24/14)
http://www.linuxuser.co.uk/tutorials/wicd-tutorial (Wicd tutorial; 8/14)

Package Manager
http://how-to.linuxcareer.com/comparison-of-major-linux-package-management-systems (http://how-to.linuxcareer.com/comparison-of-major-linux-package-management-systems; 11/18/11)

PDA
http://www.linux.com/archive/feature/43399 (Synchronizing PalmOS devices with Linux; 3/17/05)
http://www.pilot-link.org/README.usb (Palm; pilot-link)
http://tldp.org/HOWTO/PalmOS-HOWTO/index.html (Palm OS Desktop HOWTO); 3/02)
https://help.ubuntu.com/community/PalmDeviceSetup (Palm ubuntu)
http://lists.jpilot.org/pipermail/jpilot/2009-January/007825.html (Palm; jpilot forum post)
http://www.tuxmobile.org/ (Linux With Laptops, Notebooks, PDAs and Mobile Cell Phones)
http://linuxwacom.sourceforge.net/ (The Linux Wacom Project)
http://www.informit.com/articles/article.asp?p=462523&rl=1
http://atulchitnis.net/writings/palm-ppp.php (TCP/IP over PPP between a PalmOS PDA and Linux)
http://www.askdavetaylor.com/how_can_i_connect_my_palm_treo_to_the_internet.html (How can I connect my Palm Treo to the Internet?)
http://howto.pilot-link.org/bluesync/ (Synchronize your PalmOS® Handheld over Bluetooth in Linux; 2/9/04)
http://kb.palm.com/wps/portal/kb/common/article/887_en.html (Palm Treo 700p reset HowTo)
https://wiki.ubuntu.com/CanadianTeam/Vancouver/PalmOS_Syncing_Under_Karmic (PalmOS Syncing Under Karmic; 12/12/10)

Phone
http://maketecheasier.com/videoconference-linux-and-windows-with-ekiga/2009/08/05 (How to Videoconference Linux and Windows with Ekiga)

Pinning
http://www.howtoforge.com/a-short-introduction-to-apt-pinning (A Short Introduction To Apt-Pinning)

Presentation
http://www.shallowsky.com/linux/LinuxPresentations.html
http://www.astro.umd.edu/~teuben/linux/lhttps://www.guru99.com/unix-linux-tutorial.htmlaptop-display.html

Printer
http://www.cups.org/ (CUPS used by most distributions)
http://cups.sourceforge.net/cups_install.html (Little HOWTO on installing CUPS on my system. [RPM])
https://www.openprinting.org/printers (LinuxFoundation: OpenPrinting)
http://localhost:631 (Control Center on local computer)
http://www.linux-magazine.com/issue/42/CUPS_Network_Printing.pdf
http://www.physik.uni-wuerzburg.de/%7Evrbehr/cups-pdf/(CUPS-PDF)
http://gimp-print.sourceforge.net/ (Gutenprint [formerly Gimp-Print])
http://hpinkjet.sourceforge.net/ (HP Linux and Image Printing)
http://hpoj.sourceforge.net/ (HP OfficeJet Linux driver)
http://solutions.brother.com/linux/en_us/index.html (Brother Linux Driver Homepage)
http://solutions.brother.com/linux/sol/printer/linux/cups_drivers.html (Brother CUPS driver and CUPS Wrapper driver download)
http://www.avasys.jp/english/linux_e/DL1_ink_e.html (EPSON; Download: Inkjet Printer)
ftp://download.canon.jp/pub/driver/bj/linux/ (Canon; drivers)
http://www.canon-europe.com/ (Canon Europe)
http://users.cybercity.dk/~dko12479/ (Lexmark Z700/P700/P3150https://www.guru99.com/unix-linux-tutorial.html linux printer driver)
http://goinglinux.com/articles/PrintToPDF.html (Add A PDF Printer)
http://www.dice.inf.ed.ac.uk/units/user_support/docs/cups-printing.html (Using lpr with CUPS)
http://www.linux.com/learn/tutorials/774476-how-to-manage-printers-in-linux (How to Manage Printers in Linux; 5/27/14)
http://www.linuxjournal.com/content/getting-started-3-d-printing-hardware (Getting Started with 3-D Printing: the Hardware ; 10/26/12)

Printer 3D
https://www.linux.com/news/hardware/peripherals/696285-open-source-and-linux-compatible-3d-printers/ (Guide to Open Source and Linux-Compatible 3D Printers, Part Two; 2/4/13)
http://www.linuxjournal.com/content/whats-new-3d-printing-part-i-introduction (What's New in 3D Printing, Part I: Introduction; 12/23/15)
http://www.linuxjournal.com/content/whats-new-3d-printing-part-ii-hardware (What's New in 3D Printing, Part II: the Hardware; 1/20/16)
http://www.linuxjournal.com/content/whats-new-3d-printing-part-iii-software (What's New in 3D Printing, Part III: the Software; 2/4/16)
http://www.linuxjournal.com/content/whats-new-3d-printing-part-iv-octoprint (What's New in 3D Printing, Part IV: OctoPrint; 2/24/16)

Privacy
(moved to privacy tools in section "Others")
Publishing
http://www.linuxjournal.com/article/7054 (non-commercial; Sribus HowTo)

QR code
http://www.linuxandubuntu.com/home/how-to-create-qr-codes-in-linux (How to Create QR Codes In Ubuntu/Linux Mint; 2/221/15)

RPM
http://bobcares.com/article45.html (RPM instructions)
http://www.rpm.org/max-rpm/ (Maximum RPM; 2000)
http://www.tecmint.com/20-practical-examples-of-rpm-commands-in-linux/ (20 Practical Examples of RPM Commands in Linux; 4/10/13)
https://www.howtoforge.com/tutorial/how-to-convert-packages-between-deb-and-rpm/ (How to convert packages between .deb and .rpm; 12/15)

RPM (building)
http://genetikayos.com/code/repos/rpm-tutorial/trunk/rpm-tutorial.html (RPM Tutorial)
http://www.rpm.org/max-rpm/ (Maximum RPM; 2000)

RPM (configuration)
http://linuxconfig.org/list-of-rpm-configuration-files

Scan
http://www.fifi.org/doc/xsane/html/sane-xsane-doc.html (Index of XSane documentation)
http://www.sane-project.org/docs.html (SANE - Documentation)

Security
(see email and HTTPS for security on email and websites) http://maketecheasier.com/remove-windows-viruses-with-linux/2010/02/02?utm_source=feedburner (How to Remove Windows Viruses with Linux; 2/2/10)
http://thelinuxworks.blogspot.com/2015/10/pcworld-recently-published-article.html (Linux Security: Lock Down a New System Immediately; 10/7/16)
http://www.dpo.uab.edu/~andrewb/snort/snortdoc/snort.html (non-commercial; Snort docs)
http://www.jpsdomain.org/infosec/snort.html (non-commercial; Snort docs)
http://neworder.box.sk/newsread.php?newsid=7646 (non-commercial; Snort tutorial)
http://www.auslogics.com/en/blog/2009/05/top-5-firefox-security-add-ons/ (Top 5 Firefox Security Add-ons)
http://itmanagement.earthweb.com/secu/article.php/3850796/51-Open-Source-Tools-to-Protect-Your-Identity.htm (51 Open Source Tools to Protect Your Identity; 12/3/09)
http://www.zdnet.com/blog/btl/five-tips-for-improving-linux-security/35798?tag=content;search-results-rivers/ (Five tips for improving Linux security; 6/15/10)
http://www.unixmen.com/linux-tutorials/1623-9-best-practices-to-secure-your-linux-desktop-and-server (9 Best practices to secure your Linux Desktop & Server | Including installation & Configuration; 4/8/11)
http://www.itworld.com/security/397733/how-block-traffic-other-countries-linux (How to block traffic from other countries in linux; 12/27/13)

Server
http://www.reallylinux.com/docs/admin.shtml (Linux Commands for Beginning Server Administrators)
https://httpd.apache.org/docs/current/ (Apache)

Server Analysis
https://www.devonwebdesigners.com/2567/awstats-vs-webalizer-vs-google-analytics/

Speech Recognition
http://cmusphinx.sourceforge.net/wiki/ (Sphinx official wiki)
http://sphinx.subwiki.com/sphinx/index.php/Main_Page (Sphinx unofficial wiki)

Speed
https://www.maketecheasier.com/linux-running-too-slow-heres-how-to-find-the-cause/ (Linux Running Too Slow? Here's How to Find the Cause; 6/19/18)

Sound/Audio
http://www.maximumpc.com/audacity_crash_course_2014 (Audacity Crash Course; 8/19/14)

System Cleaning
http://freedompenguin.com/articles/how-to/keeping-linux-clean/ (Keeping Linux Clean; 11/2/16)

System Monitor
http://conky.linux-hardcore.com/ (conky)

TextEditor (see vi & emacs also)
http://www.howtogeek.com/howto/42980/the-beginners-guide-to-nano-the-linux-command-line-text-editor/
http://linuxaria.com/article/gedit-an-easy-to-use-text-editor-with-many-advanced-features?lang=en (gEdit, an easy to use text editor with many advanced features)

Torrent
http://www.everydaylinuxuser.com/2014/05/a-beginners-guide-to-bittorrent-and.html (A beginners guide to bittorrent and the KTorrent client software; 5/9/14)

Troubleshooting
http://www.nextstep4it.com/magazines/nseditions/2013/Dec13_Edition/linux.php (12 Most Common Linux TroubleShooting Scenarios; 12/13)

USB Iso (create & boot)
http://pcsupport.about.com/od/tipstricks/ht/bootusbflash.htm (How To Boot From a USB Device (Flash Drive or External Hard Drive))
http://www.linuxjournal.com/content/linux-fingernail (Linux on a Fingernail)
http://ostatic.com/blog/putting-linux-muscle-in-your-pocket-resources-for-usb-thumb-drives (Putting Linux Muscle in Your Pocket: Resources for USB Thumb Drives; 1/16/09)
http://tuxtweaks.com/2014/03/create-linux-mint-persistent-live-usb/ (How To Create a Linux Mint Persistent Live USB; 3/27/14)
http://www.ubuntubuzz.com/2015/04/create-multiboot-os-usb-with-multisystem-in-linux.html (Create Multiboot OS USB with Multisystem in Linux; 4/15)

Video
http://www.makeuseof.com/tag/current-state-video-streaming-services-linux/ (The Current State of Video Streaming Services on Linux; 11/5/16)
https://support.mozilla.org/en-US/products/firefox/chat-and-share/firefox-hello-webrtc (Firefox Hello)
https://webrtc.org/ (WebRTC; Real-Time Communications (RTC) capabilities via simple APIs)
https://opensource.com/article/18/7/media-conversion-tools-linux (4 open source media conversion tools for the Linux desktop; 7/23/18)

Web Publishing
http://tuxradar.com/content/drupal-get-started-easy-way (Drupal: Get started the easy way; 11/27/09)

Window Emulator/Simulator/Virtualization
http://www.linuxforums.org/forum/wine/ (WINE' forum)
http://wine-review.blogspot.com/2007/12/quick-introduction-to-wine.html (A quick introduction to Wine)
http://www.frankscorner.org/ (WINE; Frank's Corner)
http://daniel.saunders.googlepages.com/howto.html#UseESwordOnLinux. (WINE; esword)
https://launchpad.net/~ubuntu-wine/+archive/ppa (PPA for Ubuntu Wine Team )
http://wiki.jswindle.com/index.php/Wine_InstallShield (WINE: InstalklShield)
http://qemu-forum.ipi.fi/ (QEMU forum)
http://communities.vmware.com/index.jspa (VMWare forum)

Window Manager (not Desktop Environment)
http://urukrama.wordpress.com/openbox-guide/ (Openbox guide)
http://icculus.org/openbox/index.php/Main_Page (openbox doc)
http://maketecheasier.com/beginners-guide-to-fluxbox-configuration/2010/01/19 (Beginner’s Guide to Fluxbox Configuration; 1/19/10)
http://fluxbox-wiki.org/ (fluxbox wiki)
http://www.linux.com/learn/tutorials/467792-creating-the-perfect-fluxbox-desktop-on-linux (Creating the Perfect Fluxbox Desktop on Linux; 7/12/11)
http://www.techrepublic.com/blog/opensource/four-great-pipe-menus-for-openbox/2720?tag=content;siu-container (Four great pipe menus for Openbox; 7/25/11)
http://www.freesoftwaremagazine.com/articles/powering_fluxbox_menus_fluxbox_editor (http://www.freesoftwaremagazine.com/articles/powering_fluxbox_menus_fluxbox_editor; 8/24/12)

Wireless Softwares
http://www.linuxquestions.org/linux/answers/Networking/NdisWrapper_The_Ultimate_Guide/ (Ndiswrapper)
http://www.thinkwiki.org/wiki/Madwifi (MadWifi)

Word Processor
https://www.libreoffice.org/get-help/documentation/ (LibreOffice Documentation)
https://community.kde.org/Calligra/Words (Calligra/Words wiki)
http://wiki.services.openoffice.org/wiki/Main_Page (OpenOffice wiki)
http://oooauthors.org/groups/authors/userguide/migrationguide/ (OpenOffice migration)
http://www.taming-openoffice-org.com/ (Taming OpenOffice.org)
http://www.8daysaweek.co.uk/ (OpenOffice.org directory)
http://www.bytebot.net/openoffice/faq.html (The OpenOffice.org Unofficial FAQ; 2003)
http://web.ukonline.co.uk/mripley/toolbox.html (OpenOffice.org API & BASIC formats)
http://openoffice.start4all.com/ (OpenOffice directory)
http://wiki.services.openoffice.org/wiki/Main_Page (OpenOffice.org wiki)
http://www.lockergnome.com/nexus/linux/2007/08/15/open-office-making-it-start-faster/ (Open Office - Making It Start Faster!)
http://linuxbeacon.com/doku.php/articles:writertips (Getting the most out of OpenOffice.org Writer)
http://www.ooodocs.org/ (ooodocs.org; commercial support)
http://www.getopenoffice.org/main.html (Get Open Office; commercial support)
http://www.digitaldistribution.com/ (eLearning for OpenOffice.org; commercial support)
http://www.open-of-course.org/index.php (OpenOffice.org and Scribus tutorial)
http://www.linuxjournal.com/content/pdf-export-openofficeorg (PDF Export in OpenOffice.org; 4/13/10)
http://www.tuxmagazine.com/node/1000225 (Scribus tutorial)
http://portal.unesco.org/culture/en/ev.php-URL_ID=26193&URL_DO=DO_PRINTPAGE&URL_SECTION=201.html (Get Started With Scribus)
http://decafbad.net/projects/scribus-tutorial (Scribus Tutorial)
http://www.linuxuser.co.uk/features/getting-started-with-scribus/ (Getting started with Scribus; 1/12/10)
http://linuxmafia.com/wpfaq/ (WordPerfect on Linux FAQ)
http://docbook.sourceforge.net/ (non-commercial; specs for XML?)

Workspace
http://www.datamation.com/open-source/linux-virtual-workspaces-how-do-they-differ.html (Linux Virtual Workspaces--How Do They Differ?; 6/11/13)

Softwares

General
http://www.seopher.com/articles/the_70_coolest_free_applications_in_existence (The 70 coolest free applications in existence)
http://www.linuxjournal.com/content/silly-programs (Silly Programs; 6/19/11)
http://www.datamation.com/open-source/67-open-source-replacements-for-really-expensive-applications-1.html (67 Open Source Replacements for Really Expensive Applications; 8/16/11)
http://www.datamation.com/open-source/60-open-source-tools-for-protecting-your-privacy-1.html (60 Open Source Tools for Protecting Your Privacy; 8/22/11)
http://pcquest.ciol.com/content/topstories/2012/112113008.asp (40+ Open Source and Free Software; 11/30/12)
http://www.cyberciti.biz/open-source/best-terminal-applications-for-linux-unix-macosx/ (15 Greatest Open Source Terminal Applications Of 2012; 1/7/13)
http://www.datamation.com/applications/the-ultimate-guide-to-open-source-software-1.html (The Ultimate Guide to Open Source Software; 12/17/13)
http://www.datamation.com/open-source/50-open-source-replacements-for-windows-xp-1.html (50 Open Source Replacements for Windows XP; 4/16/14)
https://www.linuxjournal.com/content/foss-software-alternatives-popular-proprietary-software (FOSS Alternatives to Popular Proprietary Software; 8/14/18)

Accounting
http://www.gnucash.org/ (non-commercial; GNUCash - double accounting)
http://kmymoney2.sourceforge.net/ (non-commercial; KMyMoney)
http://www.sql-ledger.org (non-commercial; SQL ledger - double accounting)
http://www.ledgersmb.org/ (non-commercial; LedgerSMB)
http://jgnash.sourceforge.net/wiki/index.php/Main_Page (non-commercial; jGnash)
http://gnofin.sourceforge.net/ (non-commercial; Gnofin)
http://www.grisbi.org/ (non-commercial; Grisbi)
http://arias.sourceforge.net/ (non-commercial; ARIA)
http://www.starnix.com/banal/ (non-commercial; BANAL; bookkeeping)
http://buddi.digitalcave.ca/ (non-commercial; Buddi)
http://homebank.free.fr/ (non-commercial; Homebank)
http://mjrz.net/ (non-commercial; Mjrz)
http://www.codelathe.com/mmex/ (non-commercial; Money Manager Ex)
http://vps.arachnoid.com/PLCash/index.html (non-commercial; PLCash)
http://adempiere.org/home/main (non-commercial; ADempiere)
http://www.jquantlib.org/index.php/Main_Page (non-commercial; JQuantLib)
http://www.ifreebudget.com/ (non-commercial; iFreeBudget)
https://github.com/mrooney/wxbanker (non-commercial; wxbanker)
http://www.icewalkers.com/Linux/Software/518870/CheckBook-Tracker.html (non-commercial; Checkbook Tracking - single accounting; 2003)
http://www.compiere.com/ (commercial but free trial and/or free community edition; Compiere)
http://www.moneydance.com (commercial; Moneydance)
http://www.linuxcanada.com (commerical; Quasar)
http://oe.quickbooks.com/ (commercial; QuickBooks Online)
http://www.jaya123.com/ (commerical; JAYA123; small business)
http://www.linuxledgers.com/ (commercial; Linux General Ledger)
http://blogs.techrepublic.com.com/10things/?p=372 (Top 10 Linux financial tools)
http://www.aaxnet.com/design/linuxacct.html (various links)
http://www.datamation.com/open-source/63-open-source-replacements-for-popular-financial-software-1.html (63 Open Source Replacements for Popular Financial Software; 7/11/11)

Alarms
http://www.linuxlinks.com/Software/ProductivityTools/Timers/ (list)

Anti-Virus/Adware/Worms
http://www.clamav.net/ (non-commerical; Clam AntiVirus)
http://kde-apps.org/content/show.php?content=14549 (non-commercial; kbitdefender)
http://www.grisoft.com/us/us_index.php (commerical; AVG Anti-Virus)
http://www.bitdefender.com/ -> linux (commercial; bitdefender
http://www.f-prot.com/ (commerical; F-Prot Antivirus)
http://www.hbedv.com (commerical; AntiVir)
http://www.ravantivirus.com/ (commerical; RAV Antivirus)
http://www.avast.com/ (commerical; avast!)
http://www.norman.com/ (commerical; Norman)
http://www.pandasoftware.com/ (commerical; Panda)
http://www.astaro.com/# (commercial; Astaro's products)

Applications
http://portableapps.com (non-commercial; Portable App)

Archiver Utility
http://www.peazip.org/ (non-commercial; PeaZip)

Astromony
http://www.shatters.net/celestia/ (non-commercial; Celestia)
http://www.stellarium.org/ (non-commercial; Stellarium)

AntiVirus
http://www.linux.org/threads/malware-and-antivirus-systems-for-linux.4455/ (Malware and Antivirus Systems for Linux; 8/19/13)

Backups
http://www.rsnapshot.org (non-commercial; rsnapshot)
http://www.partimage.org/ (non-commercial; Partition Image)
http://cdtar.sourceforge.net/ (non-commercial; cdtar)
http://konserve.sourceforge.net/ (non-commercial; Konserve)
http://www.feyrer.de/g4u/ (non-commercial; g4u)
http://dar.linux.free.fr/ (non-commercial; DAR)
http://www.amanda.org/ (non-commercial; AMANDA)
http://mkcdrec.ota.be/project/index.html (non-commercial; mkCDrec)
http://www.dirvish.org/ (non-commercial: DIRVISH)
http://sbackup.sourceforge.net/HomePage (non-commercial; SBackup)
http://backuppc.sourceforge.net/ (non-commercial; BackupPC)
http://www.sysresccd.org/ (non-commercial; SystemRescueCd)
http://www.nongnu.org/rdiff-backup/ (non-commercial; rdiff-backup)
http://www.bacula.org/en/ (non-commercial: Bacula)
http://kbackup.sourceforge.net/ (non-commercial: KBackup)
http://backintime.le-web.org/ (non-commercial: Back In Time)
http://www.fsarchiver.org/Main_Page (non-commercial: FSArchiver)
http://luckybackup.sourceforge.net/ (non-commercial: luckyBackup)
http://www.opbyte.it/grsync/ (non-commercial: Grsync)
http://www.mondorescue.org/ (non-commercial: Mondo Rescue)
https://spideroak.com/ (non-commercial; SpiderOak; online backup; includes sync and sharing)
http://www.crashplan.com/consumer/crashplan.html (commercial; free software, but paid storage; CrashPlan)
http://www.arkeia.com/ (commercial; Arkeia)
http://www.veritas.com/ (commercial; VERITAS )
http://www.thekompany.com/products/tkbackup/ (commercial: tkBackup)
http://www.acronis.com/ (commercial; Acronis)
http://visualversion.com/backupsw/index.html (commercial; BackupSW)
http://www.linuxlinks.com/Web/Utilities/Backup/index.shtml (various utilities)
http://www.linux.org/apps/all/Administration/Backup.html (various utilities)
http://blogs.techrepublic.com.com/10things/?p=895 (10 outstanding Linux backup utilities; list; 7/21/09)
http://www.datamation.com/open-source/60-os-replacements-for-storage-software-1.html (60 OS Replacements for Storage Software; software list include compression, database, data recovery, etc; October 15, 2012)
http://www.cyberciti.biz/open-source/awesome-backup-software-for-linux-unix-osx-windows-systems/ (5 Awesome Open Source Backup Software For Linux and Unix-like Systems; 11/6/15)

Bandwidth Monitoring Tools
http://www.ubuntugeek.com/bandwidth-monitoring-tools-for-linux.html (various utilities)

Battery
http://www.lesswatts.org/projects/powertop/ (non-commercial; Powertop)

Bible
http://www.bibletime.info/ (non-commercial; Bibletime)
http://xiphos.org/ (non-commercial; Xiphos [was GNOMESword)
http://www.kiyut.com/products/alkitab/index.html (non-commercial; Alkitab Bible Study)
http://www.bibleanalyzer.com/ (non-commercial; Bible Analyzer)
http://bpbible.com/ (non-commercial; BPBible)

Blog
http://www.s9y.org/ (non-commercial; Serendipity)
http://wordpress.com/ (non-commercial; WordPress w/ user website)
http://wordpress.org/ (non-commercial; WordPress w/o user website)
http://lifetype.net/ (non-commercial; LifeType)
http://gwibber.com/ (non-commercial; Gwibber)
http://dotclear.org/ (non-commercial; Dotclear)
http://choqok.gnufolks.org/ (non-commercial; Choqok; uses KDE)
https://github.com/jgoerzen/twidge/wiki (non-commercial; Twidge; for programming)
http://www.movabletype.com/ (commercial, but free basic; Movable Type)

Bluetooth
https://github.com/blueman-project/blueman (non-commercial; blueman)

Boot Manager
http://www.plop.at/en/bootmanager.html (non-commercial; Plop Boot Manager; free for non-commercial use)

BootLoader
http://www.gnu.org/software/grub/ (non-commercial; Grub)

Browsers
http://www.mozilla.com/en-US/firefox/ (non-commercial; firefox)
http://getfirebug.com/ (non-commercial; firebug = firefox add-on)
http://www.technewsworld.com/story/All-Things-Appy-5-Best-Firefox-Tools-for-Shopping-Online-79212.html (All Things Appy: 5 Best Firefox Tools for Shopping Online; 10/18)
http://www.computerworld.com/article/2692560/six-browser-plug-ins-that-protect-your-privacy.html (Six browser plug-ins that protect your privacy; 10/18/14)
http://www.mozilla.org/projects/seamonkey/ (non-commercial; SeaMonkey)
http://getswiftfox.com/index.htm (non-commercial; Swiftfox; firefox optimized)
http://www.geticeweasel.org/ (non-commercial; Iceweasel; debian's firefox)
http://plugindoc.mozdev.org/ (non-commercial; firefox & mozilla plugins)
http://www.gnu.org/software/gnuzilla/ (non-commercial; GNUzilla; GNU mozilla)
http://adblock.mozdev.org (non-commercial; AdblocK [Mozilla and Firebird])
http://www.techdrivein.com/2010/11/top-10-firefox-add-ons-to-make-browsing.html (Top 10 Firefox Add-ons to Make Browsing Safe, Secure and Private Once Again; 11/15/10)
http://www.itworld.com/internet/134160/best-firefox-extensions-organize-your-way-better-firefox (Best Firefox extensions: Organize your way to a better Firefox; 1/24/11)
http://wiki.mozilla.org/WebRunner (non-commercial; Prism [works with firefox])
http://www.palemoon.org/ (non-commercial; Pale Moon; firefox w/o Australis)
http://www.konqueror.org/ (non-commercial; konqueror; KDE)
https://wiki.gnome.org/Apps/Web (non-commercial; Epiphany)
http://midori-browser.org/ (non-commercial; Midori)
https://vivaldi.com/ (non-commercial; Vivaldi)
http://galeon.sourceforge.net (non-commercial; galeon; GNOME)
http://www.dillo.org/ (non-commercial; dillo)
http://en.wikipedia.org/wiki/Lynx_(web_browser) (non-commercial; Lynx [text browser])
http://links.sourceforge.net/ (non-commercial; WWW Text Browser)
http://www.w3.org/Amaya/ (non-commercial; Amaya)
http://www.netsurf-browser.org/ (non-commercial; NetSurf)
http://www.tatanka.com.br/ies4linux/page/Main_Page(non-commercial; IEs4linux)
http://www.netsurf-browser.org/ (non-commercial; NetSurf)
http://www.srware.net/en/software_srware_iron.php (commercial but open source; Iron [based on Chromiun, but w/ privacy)
http://www.chromium.org/ (non-commercial; Chromium)
http://www.qupzilla.com/ (non-commercial; QupZilla)
http://www.getmantra.com/ (non-commercial; Mantra)
http://portix.bitbucket.org/dwb/ (non-commercial; dwb)
http://www.slimjet.com/en/ (non-commercial; Slimjet)
https://www.brave.com/(non-commercial; privacy; in alpha as of 10/17; Brave)
https://www.brow.sh/ (non-commercial; browsh)
http://www.google.com/chrome/intl/en/more/index.html (non-commercial, but produced by Google; Chrome)
http://www.opera.com/ (commercial, but free basic; Opera)

CAD/Rendering/Graphics
http://www.blender3d.org/ (non-commercial; Blender)
http://www.inkscape.org/ (non-commercial; Inkscape)
http://www.wings3d.com/ (non-commercial; Wings 3D)
http://www.povray.org/ (non-commercial; POV-Ray)
http://www.sodipodi.com/index.php3 (non-commercial; Sodipodi)
http://lx-viewer.sourceforge.net/ (non-commercial; LX-Viewer)
http://brlcad.org/ (non-commercial; BRL-CAD)
http://sagcad.sourceforge.jp/ (non-commercial; SagCAD)
http://archimedes.incubadora.fapesp.br/portal (non-commercial; archimdes)
http://www.misfitcode.com/misfitmodel3d/ (non-commercial; Misfit Model 3D)
http://www.opencascade.org/ (non-commercial; Open CASCADE)
http://sourceforge.net/projects/free-cad/ (non-commercial; FreeCAD)
http://varkon.sourceforge.net/ (non-commercial; VARKON)
http://www.k-3d.org/wiki/Main_Page (non-commercial; K-3D)
http://www.artofillusion.org/ (non-commercial; Art of Illusion)
http://argouml.tigris.org/ (non-commercial; ArgoUML)
http://www.gnu.org/software/electric/ (non-commercial; Electric; electric CAD)
http://ayam.sourceforge.net/ayam.html (non-commercial; Ayam)
http://librecad.org/cms/home.html (non-commercial; LibreCAD)
http://www.3ds.com/products/draftsight/free-cad-software (commercial service, free program; DraftSight)
http://www.qcad.org/ (commercial; QCad)
http://www.ribbonsoft.com/camexpert.html (commercial; CAM Expert = CAM extension of QCad)
http://www.varicad.com/ (commercial; VariCAD)
http://www.bricscad.com/ (commercial; BricsCad)
http://www.cadsoft.de/ (commercial; CadSoft)
http://www.graebert.com/en/cad/ares/99 (commercial; ARES)
http://www.freecad.com/dcd/CAD_Programs____xNIX/ (list of CAD programs)
http://www.tech-edv.co.at/lunix/CADlinks.html (list of CAD programs)

Calculator
http://speedcrunch.org/en_US/index.html (non-commercial; SpeedCrunch)
http://qalculate.sourceforge.net/ (non-commercial; Qalculate)
http://extcalc-linux.sourceforge.net/features.html (non-commercial; Extcalc)
http://www.jirka.org/genius.html (non-commercial; Genius)
http://utils.kde.org/projects/kcalc/ (non-commercial; KCalc; part of KDE)

Calendar
http://www.mozilla.org/projects/calendar/lighting/ (non-commercial; lighting)
http://www.mozilla.org/projects/calendar/sunbird/ (non-commercial; sunbird)
https://linux.die.net/man/1/orage (non-commercial; Orage [part of XFCE])
http://www.brownbearsw.com/calcium/ (commercial; Calcium)
http://www.rainlendar.net/cms/index.php (commercial; Rainlendar)

Camera/Webcam (see also photo)
http://projects.gnome.org/cheese/ (non-commercial; Cheese)
http://guvcview.sourceforge.net/ (non-commercial; Guvcview)
http://www.zoneminder.com/ (non-commercial; ZoneMinder; surveillence)
http://www.inference.phy.cam.ac.uk/opengazer/ (non-commercial; Opengazer)
http://www.inference.phy.cam.ac.uk/dasher/ (non-commercial; Dasher; motion text-editing)
http://live.gnome.org/MouseTrap (non-commercial; MouseTrap; motion GNOME controls)
http://code.google.com/p/gpicsync/ (commercial, but free; gpicsync; GPS)

Car Navigation
http://roadmap.sourceforge.net/ (non-commercial; RoadMap)

CD/DVD Burner
http://www.k3b.org/ (non-commercial; K3b)
http://www.xfce.org/projects/xfburn/ (non-commercial; xfburn)
http://projects.gnome.org/brasero/ (non-commercial; Brasero)
http://www.xcdroast.org/ (non-commercial; X-CD-Roast)
http://gnomebaker.sourceforge.net/ (non-commercial; GnomeBaker)
http://sourceforge.net/projects/kreatecd/ (non-commercial; KreateCD)
http://cdbakeoven.sourceforge.net/ (non-commercial; CD Bake Oven)
http://arson.sourceforge.net/ (non-commercial; Arson)
http://bashburn.sourceforge.net/ (non-commercial: BashBurn (console))
http://simpleburn.tuxfamily.org/ (non-commercial; SimpleBurn)
http://cdrdao.sourceforge.net/ (non-commercial; Cdrdao)
http://www.littlesvr.ca/isomaster/ (linux - free, window - pay; ISO Master)
http://www.acetoneteam.org/ (non-commercial; AcetoneISO)

Cellphone (see PDA also)
http://www.bitpim.org/ (non-commercial; BitPim)

Childern's Softwares
http://edu.kde.org/ (list)
http://www.filegate.net/linux4kids/ (non-commercial; Linux4kids: Educational Linux Software)
http://sourceforge.net/projects/linuxkidx/ (non-commercial; LinuxKidX)
http://tux4kids.alioth.debian.org/ (non-commercial; Tux4Kids [TuxMath, TuxPaint, TuxTyping])
http://www.squeakland.org/ (non-commercial; Etoys)
http://gcompris.net/-en- (non-commercial; GCompris)

Cloud (private)
http://owncloud.org/ (non-commercial; ownCloud)
http://wiki.debian.org/FreedomBox (non-commercial; FreedomBox)
http://openstack.org/ (non-commercial; OpenStack)
http://www.skylable.com/ (non-commercial; Skylable [commercial support]; private data cloud)
http://per-cloud.com/doku.php (non-commercial; percloud; [privacy, still in pre-alpha as of 10/13])
http://owncloud.org/ (commercial; ownCloud; free program, but commercial support)
http://www.eucalyptus.com/ (commercial; Eucalyptus)
http://www.getdropbox.com/ (DropBox)
https://pydio.com/ (commercial; pydio)
https://about.mattermost.com/ (commercial; open source, private cloud; Mattermost)
https://rocket.chat/ (commercial; open source; Rocket.Chat)
https://www.fossmint.com/dropbox-alternatives-for-linux/ (The 9 Best Free Dropbox Alternatives for Linux; 3/17)

Cloud (public)
http://www.xenproject.org/ (Xen; security)

Code Editor
https://bespin.mozilla.com/ (???; Bespin; web-based)

Collaboration and Integration Server (browser+email+calendar+etc)
http://www.open-xchange.com/ (non-commercial; Open-Xchange)
http://www.cynapse.com/cynin (commercial but free community edition; Cyn.in)
http://www.cynapse.com/syncnotes (commercial; SyncNotes)

Concurrent Versions System (CVS)
http://www.horde.org/projects.php (non-commercial; Horde)

Content Management System (CMS)
http://drupal.org/ (non-commercial; Drupal)
http://www.textpattern.com/ (non-commercial; Textpattern)
http://plone.org/ (non-commercial; Plone)
http://www.tryton.org/en/ (non-commercial; Tryton)
http://www.cmsobserver.com/best-free-shopping-carts/ (Best Free Shopping Carts; 10/22/13)

Cookbook/Recipe
http://grecipe-manager.sourceforge.net/ (non-commercial; Gourmet Recipe Manager)
http://phprecipebook.sourceforge.net/index.php (non-commercial; PHPRecipeBook)
http://krecipes.sourceforge.net/ (non-commercial; Krecipes)

Cloud
https://owncloud.org/ (non-commercial; ownCloud)
(non-commercial; Cryptomator; client-side encryption)
http://www.linuxbsdos.com/2013/08/17/4-host-proof-or-prism-proof-cloud-storage-services/ (4 host-proof or PRISM-proof Cloud storage services; 8/17/13)

Collaboration
https://wire.com/ (non-commercial; Wire)

Crossword
http://www.freedownloadscenter.com/Best/linux-crossword.html (list)
http://crossword.sourceforge.net/ (non-commercial; crossword)

Customer Relationship Management (CRM)
http://xrms.sourceforge.net/pagebuilder.php?s1=18 (non-commercial; XRMS)
http://www.sugarcrm.com/ (commercial support; open source; SugarCRM)
http://www.vtiger.com/ (commercial; vtiger)
http://www.salesforce.com/ (commercial; Salesforce.com)
http://www.netsuite.co.uk/portal/uk/products/main.shtml (commercial; NetSuite)
http://www.freecrm.com/index.html (commercial; free basic edition; Free CRM)

Data Recovery
http://www.sysresccd.org/ (non-commercial; SystemRescueCd)
http://www.mondorescue.org/ (non-commercial; Mondo)
http://www.cgsecurity.org/wiki/TestDisk (non-commercial; TestDisk)
http://www.cgsecurity.org/wiki/PhotoRec (non-commercial; PhotoRec)
https://grc.com/ (commercial; SpinRite)
http://www.blackmoreops.com/2014/11/28/data-recovery-software-data-rescue-tools/ (14 top data recovery softwares; 11/28/14)

Database
http://www.pgaccess.org/ (non-commercial; PgAccess)
http://www.knoda.org/ (non-commercial; knoda)
http://www.tamos.net/sw/dbMetrix/ (non-commercial; dbMetrix)
http://www.mysql.com/ (commercial, but open source license)
http://www.thekompany.com/projects/rekall/ (commercial, but open source license; Rekall)
http://www.navicat.com/ (commercial w/ free trial; Navicat)
http://www.omnis.net/ (commercial; Omnis Studio & Omnis Web Client)

Desktop (web-based)
http://desktoptwo.com/ (commercial, but free; Desktoptwo)
http://eyeos.org/ (non-commercial; eyeOS)

Desktop computing and communications platform (security)
https://subgraph.com/index.en.html (non-commercial; Subgraph OS)

Desktop Environment (more than a window manager)
http://www.kde.org/ (non-commercial; KDE)
http://www.gnome.org/ (non-commercial; GNOME)
http://www.xfce.org/ (non-commercial; XFCE)
http://lxde.org/ (non-commercial; LXDE)
http://mate-desktop.org/ (non-commercial; MATE)
http://equinox-project.org/ (non-commercial; Equinox)
http://roscidus.com/desktop/ (non-commercial; Roxc)
http://xwinman.org/otherdesktops.php (list)
http://www.nongnu.org/antiright/ (non-commercial; AntiRight)
http://goodies.xfce.org/projects/panel-plugins/xfce4-mailwatch-plugin (non-commercial; XFCE Plugin: Mailwatch)

Destruction
http://dban.sourceforge.net/ (non-commercial; DBAN)
http://wipe.sourceforge.net/ (non-commercial; Wipe)
http://linoxide.com/security/delete-files-permanatly-linux (4 Tools to Securely Delete Files from Linux; 3/24/15)

Development
http://status.net/ (non-commercial; StatusNet)

Diabetes
http://www.healthengage.com/healthengagediabetes.html (commercial w/ free trial; HealthEngage)

Diagnostic
http://linux-diag.sourceforge.net/ (non-commercial; Linux Diagnostic Tools)
http://www.pc-doctor.com/ (commercial; PC-Doctor)

Dictionary
http://jalingo.sourceforge.net/ (non-commercial; JaLingo)
http://sdict.com/en/ (non-commercial; Sdictionary)
http://stardict.sourceforge.net/ (non-commercial; StarDict)
http://xdxf.revdanica.com/ (non-commercial; XDXF; file conversion)
http://www.linuxandlife.com/2011/10/dictionary-applications-for-linux.html (Qstardict and GoldenDict - Two great offline dictionary applications for Linux; 10/21/11)

Diet
http://freshmeat.net/projects/nut/ (non-commercial; NUT)
http://www.lafn.org/~av832/ (non-commercial; NUT docs)
http://freshmeat.net/projects/dmak/ (non-commercial; Diet Monger)

Directory Content Manager
http://git.or.cz/ (non-commercial; git)

Disk Imaging and Cloning
http://clonezilla.org/ (non-commercial; Clonezilla)

Disk Usage
http://kgraphspace.sourceforge.net/ (non-commercial; KGraphSpace)

Document Management
http://www.sqldesktop.com/dlpage.htm (commercial; free basic; sqlDESKTOP)

Download
(non-commercial; uGet)
https://www.kde.org/applications/internet/kget/ (non-commercial; KGet)
(non-commercial; Steadyflow)
http://prozilla.genesys.ro/ (non-commercial; ProZilla & ProzGUI)

eBook Reader
http://calibre-ebook.com/ (non-commercial; calibre)
http://www.fbreader.org/ (non-commercial; FBReader)
http://lucidor.org/lucidor/ (non-commercial; Lucidor)
http://lucidor.org/lucifox/ (non-commercial; Lucifox; firefox add-on)
https://okular.kde.org/ (non-commercial; Okular; KDE)
https://github.com/sakisds/pPub (non-commercial; pPub)
http://crengine.sourceforge.net/ (non-commercial; Cool Reader)
https://github.com/user-none/Sigil (non-commercial; Sigil)
http://www.ulduzsoft.com/linux/kchmviewer/ (non-commercial; Kchmviewer)
https://addons.mozilla.org/en-US/firefox/addon/epubreader/ (EPUBReader; Firefox add-on)

Education
http://edu.kde.org/marble/ (non-commercial; Marble; KDE World Altas)
http://resources.zdnet.co.uk/articles/comment/0,1000002985,39700497,00.htm (Ten Linux apps that get top marks from schools)

Ecommerce
http://www.nopdesign.com/freecart/ (non-commercial; NOP's Free Shopping Cart; use jaascript)
http://www.oscommerce.com/ (non-commercial; osCommerce)
http://commerce-cgi.com/ (non-commercial; Commerce.CGI; paid support)
http://www.zen-cart.com/ (free software Zen Cart; commercial support)
http://www.agoracart.com/ (free software AgoraCart; commercial support)
http://www.cubecart.com/ (commaudioercial w/ free trial; CubeCart)

Email (see also groupware)
http://www.mozilla.com/en-US/thunderbird/ (non-commercial; thunderbird)
http://globs.org/articles.php?lng=en&pg=9 (non-commecial; yamb - thunderbird extension)
http://www.mozilla.org/projects/seamonkey/ (non-commercial; SeaMonkey [continuation of mozilla])
http://www.gnome.org/projects/evolution/ (non-commercial; evolution)
http://kmail.kde.org/ (non-commercial; kmail)
http://www.claws-mail.org/ (non-commercial; Claws Mail)
http://www.mutt.org/ (non-commercial; Mutt)
http://www.washington.edu/alpine/ (non-commercial; Alpine)
http://sylpheed.sraoss.jp/en/ (non-commercial; Sylpheed)
http://www.instinct.org/elm/ (non-commercial; Elm [unix])
http://www.uic.edu/depts/accc/software/pine/index.html (non-commercial; Pine [unix])
http://www.roundcube.net/ (non-commercial; RoundCube; webmail)
http://popfile.sourceforge.net/cgi-bin/wiki.pl (non-commercial; POPFile)
http://www.spicebird.com/ (non-commercial; Spicebird)
http://squirrelmail.org/ (non-commercial; SquirrelMail)
http://sourceforge.net/projects/bitmail/ (non-commercial; Cassiopeia's BitMail)
https://pawsa.fedorapeople.org/balsa/ (non-commercial; Balsa; for GNOME)
http://trojita.flaska.net/ (non-commercial; Trojit)
http://www.mailpile.is/ (non-commercial; Mailpile; privacy; in alpha as of 8/13)
https://www.neomailbox.com/ (non-commercial; neomailbox; privacy email)
http://freedomboxfoundation.org/ (non-commercial; FreedomBox; privacy email)
https://www.mailpile.is/ (offline secure email; non-commercial; Mailpile)
http://rambox.pro/# (non-commercial; Rambox; includes messaging)
https://pawsa.fedorapeople.org/balsa/ (non-commercial; balsa)
https://nylas.com/ (commercial w/ free trial; Nylas; web based)
http://powerdns.com/products/powermail/index.php (commercial & non-commercial: PowerMail)
http://www.axigen.com/mail-server/ (commercial w/ free trial; AXIGEN)
https://nylas.com/ (commercial w/ free trial; Nylas)
https://opensource.com/life/15/9/open-source-alternatives-gmail (5 open source alternatives to Gmail; 9/10/15)
http://www.linuxlinks.com/Software/Internet/Mail/Notification/index.shtml (list of email notification programs)

Encryption
http://www.gnupg.org/ (non-commercial; GnuPG)
http://luks.endorphin.org/ (non-commercial; LUKS)
http://www.scherrer.cc/crypt/ (non-commercial; CrossCrypt)
http://ccrypt.sourceforge.net/ (non-commercial; ccrypt)
http://www.truecrypt.org/ (non-commercial; TrueCrypt; discontinued - use alternatives)
https://www.comparitech.com/blog/information-security/truecrypt-is-discoutinued-try-these-free-alternatives/ (TrueCrypt is discontinued, try these free alternative disk encryption tools; 11/22/16)

Enterprise resource planning (overlap with accounting and point-of-sale)
http://openerp.com/ (commerical; Open ERP)
http://www.openbravo.com (non-commercial; Openbravo)

Fax
http://www.fax2send.com/fax2send/page/home.html (commercial; fax2send)
http://gfax.cowlug.org/ (non-commercial; GFAX)
http://www.washington.edu/pine/ (non-commercial; Pine)
http://www.hylafax.org/content/Main_Page (non-commercial; HylaFAX)

File Transfer Protocol
https://filezilla-project.org/ (non-commercial; Filezilla)

File Manager
http://www.konqueror.org/ (non-commercial; Konqueror)
http://live.gnome.org/Nautilus (non-commercial; Nautilus)
http://thunar.xfce.org/index.html (non-commercial; Thunar)
http://www.gnu.org/s/mc/ (non-commercial; Midnight Commander)
http://pcmanfm.sourceforge.net/ (non-commercial; PCMan)
http://dolphin.kde.org/ (non-commercial; Dolphin)
http://www.krusader.org/ (non-commercial; Krusader)
http://roscidus.com/desktop/ROX-Filer (non-commercial; ROX-Filer)
http://roland65.free.fr/xfe/ (non-commercial; X File Manager)
http://awesome.naquadah.org/ (non-commercial; awesome)
http://obsession.se/gentoo/ (non-commercial; gentoo; not a linux distro)

File Sharing
https://onionshare.org/ (non-commercial; OnionShare; private file sharing)
http://azureus.sourceforge.net/ (non-commercial; Azureus)
http://www.emule-project.net/ (non-commercial; emule)

Filter
http://dansguardian.org/ (non-commercial; DansGuardian)
http://www.glubble.com/ (non-commercial; Glubble; use with firerfox)
http://www.censornet.com/ (commercial; CensorNet)

Firewall
http://www.fs-security.com/ (non-commercial; Firestarter)
http://www.tripwire.org/ (non-commercial; Tripwire)
http://www.simonzone.com/software/guarddog/ (non-commercial; Guarddog)
http://www.fwbuilder.org/ (non-commercial & commercial; Firewall Builder)
http://www.smoothwall.org/
http://shorewall.net/ (non-commercial; Shorewall)
http://www.ipcop.org/ (commercial; IPCop)
http://www.clarkconnect.com/ (commercial; ClarkConnect)

Fitness
http://www.workoutware.com/ (commercial; Open Fitness)

Flash
http://gplflash.sourceforge.net/ (non-commercial; GPLFlash )
http://www.gnu.org/software/gnash/ (non-commercial; Gnash)
http://swfdec.freedesktop.org/wiki/ (non-commercial; Swfdec)
http://lightspark.github.com/ (non-commercial; Lightspark)
http://get.adobe.com/flashplayer/otherversions/ (commercial; adobe flash)

Font
http://freetype.sourceforge.net/index2.html (non-commercial; FreeType)

Forums
http://www.phpbb.com/ (non-commercial; phpBB)
http://www.vbulletin.com/ (commercial + free demo; vBulletin)
http://atechguide.com/top-free-forum-software/ (Top 10 free forum software and Free Forum creator tools; 12/13)

FTP Equivalents
http://gftp.seul.org/ (non-commercial; gFTP)
http://www.samba.org/rsync/ (non-commercial; rsync)
http://lftp.yar.ru/ (non-commercial; LFTP)
http://vsftpd.beasts.org/ (non-commercial; vsftpd)
http://www.columbia.edu/kermit/ck80.html (non-commercial; C-Kermit)
http://kasablanca.berlios.de/ (non-commercial; Kasablanca)
http://www.proftpd.org/ (non-commercial; server; ProFTPD)
http://www.glub.com/ (commercial; Secure FTP Wrapper)
http://www.vandyke.com (commercial; various programs)
http://www.stdnet.com/ (commercial; various programs)
http://www.iglooftp.com/linux/ (commercial; IglooFTP)

Games
http://www.linux-games.com/ (non-commercial; linux-games)
http://www.linux-gamers.net/ (non-commercial; linux-gamer)
http://www.linuxgames.com/ (non-commercial; LinuxGames)
http://www.happypenguin.org/ (non-commercial; The Linux Game Tome)
http://www.linuxlinks.com/Software/Games/ (non-commercial; LinuxLinks.com Games)
http://www.gnubg.org/ (non-commercial; Backgammon - gnubg)
http://www.bergo.eng.br/eboard/ (non-commercial; Chess - eboard)
http://www.gnu.org/software/xboard/ (non-commercial; Chess - XBoard)
http://www.gnu.org/software/chess/chess.html (non-commercial; Chess - GNU Chess)
http://noughmad.eu/knights (non-commercial; Chess - Knights/KDE)
http://www.datamation.com/open-source/100-funnest-open-source-games-and-apps-1.html (100 "Funnest" Open Source Games and Apps; 7/17/12)

Graphics
http://www.gnuplot.info/ (non-commercial; GNUplot)
http://www.gimp.org/ (non-commercial; GIMP)
http://www.gimpshop.com/ (non-commercial; GIMPshop; GIMP add-on)
http://www.inkscape.org/ (non-commercial; INKSCAPE)
http://www.tuxpaint.org/ (non-commercial: TuxPaint [children])
http://scilabsoft.inria.fr/ (non-commercial; SciLab)
http://gtkmmviewer.sourceforge.net/ (non-commercial; GImageView)
http://www.octave.org/ (non-commercial; Octave)
http://www.r-project.org/ (non-commercial; r-project)
http://www.kanzelsberger.com/pixel/ (non-commercial; Pixel)
http://live.gnome.org/Dia (non-commercial; dia)
http://www.opengl.org/documentation/ (non-commercial; OpenGL)
http://www.svgalib.org/ (non-commercial; SVGAlib)
http://www.koffice.org/krita/ (non-commercial; Krita [part of KOffice])
http://xaralx.org/ (non-commercial; Xaralx)
http://labplot.sourceforge.net/index.html (non-commercial; LabPlot)
http://xfig.org/ (non-commercial; Xfig)
http://www.koffice.org/karbon/ (non-commercial; Karbon [part of KOffice])
http://sk1project.org/ (non-commercial; sK1)
http://www.skencil.org/ (non-commercial; Skencil)
http://qtpfsgui.sourceforge.net/ (non-commercial; Qtpfsgui; HDR imaging application>
http://mypaint.intilinux.com/ (non-commercial; MyPaint)
http://kolourpaint.sourceforge.net/ (non-commercial; KolourPaint; KDE)
http://krita.org/ (non-commercial; Krita)
http://www.cinepaint.org/ (non-commercial; CinePaint)
http://www.pencil-animation.org/ (non-commercial; Pencil)
http://www.synfig.org/ (non-commercial; Synfig)
http://www.skencil.org/ (non-commercial; Skencil)
http://www.koffice.org/kivio/ (non-commercial; Kivio; KOffice flowchart)
http://www.ktoon.net/portal/> (non-commercial; Ktoon)
https://pinta-project.com/pintaproject/pinta/ (non-commercial; Pinta)
http://www.xara.com/ (commercial; Xara)
http://www.linuxartist.org (non-commercial; various utilities)
http://www.linuxsoft.cz/en/sw_list.php?id_kategory=20 (various programs)

Greeting Cards
http://www.kde-apps.org/content/show.php?content=17869 (non-commercial; KreetingKard)

Groupware (Email, Calendar, etc)
http://phpgroupware.org/ (non-commercial; phpGroupWare)
http://www.horde.org/ (non-commercial; Horde)
http://www.kolab.org (non-commercial; Kolab)
http://www.open-xchange.com/ (non-commercial; open-xcheng)
http://www.simple-groupware.de/cms/ (non-commercial; Simple Groupware & CMS)
http://www.citadel.org/ (non-commercial; Citadel)
http://www.sogo.nu/english.html (non-commercial; sogo)
http://www.egroupware.org/ (non-commercial; eGroupware)
http://www.zimbra.com/ (commercial; Zimbra)
http://www.scalix.com/ (commercial; Scalix)
http://www.zarafa.com/content/home (commercial; Zarafa; free trial)

Hardware Information
http://wiki.hardinfo.org/HomePage (non-commercial; HardInfo)
https://github.com/nicolargo/glances (non-commercial; Glances)
see console command, lshw

Health
http://www.healthengage.com/healthengagediabetes-me.html (commercial; Diabetes)

Game
http://www.tuxarena.com/2014/02/several-great-linux-terminal-games/ (Several Great Linux Terminal Games; 2/22/14)

Installation
http://www.nongnu.org/synaptic/ (non-commercial; Synaptic; debian GUI Installer)
http://www.kitenet.net/programs/alien/ (non-commercial; Alien; interchanges deb, rpm, tgz, ...)
http://autopackage.org/index.html (non-commercial; autopackage)
http://zero-install.sourceforge.net/ (non-commercial; Zero Install system)
http://klik.atekon.de/ (non-commercial; klik)
http://www.ksplice.com/ (non-commercial; Ksplice)
http://keryxproject.org/ (non-commercial; Keryx [cross-platform package manager)
http://www.linuxbsdos.com/2011/11/19/top-6-linux-and-bsd-graphical-installation-programs/ (Top 6 Linux and BSD graphical installation programs; 11/19/11)

Instant Messaging
http://pidgin.im/ (non-commercial; Pidgin)
https://tox.chat/index.html (non-commercial; Tox)
https://tox.chat/clients.html (list of Tox GUI variants) http://developer.pidgin.im/wiki/Using%20Finch (non-commercial; Finch [terminal pidgin])
http://www.centerim.org/index.php/Main_Page (non-commercial; CenterIM)
https://www.crypho.com/ (non-commercial; Crypho; private chat)
http://www.igniterealtime.org/projects/openfire/ (non-commercial; Openfire)
https://tox.chat/ (non-commercial; Tox; privacy)
https://github.com/qTox/qTox (non-commercial; qTox; privacy?)
http://wwwm.meebo.com/index-en.html (commercial;, but free; Meebo; web-based)

Inventory
http://anyinventory.sourceforge.net/

iPod
http://lincgeek.org/bashpodder/ (non-commercial; BashPodder)
http://gpodder.org/ (non-commercial; gPodder)
http://penguintv.sourceforge.net/ (non-commercial; PenguinTV; RSS & video also)

IRC
http://www.tuxarena.com/intro/ref_irc.php (IRC Clients for Linux;10/11/14)

Journal
http://xournal.sourceforge.net/ (non-commercial; Xournal)

Label
http://glabels.sourceforge.net/ (non-commercial; gLabels)

Language
http://lingoteach.sourceforge.net/ (non-commercial; LingoTeach)
http://new.asymptopia.org/staticpages/index.php/NewStepIntoChinese (non-commercial; Step Into Chinese)
http://zwdisplay.sourceforge.net/ (non-commercial; ZWDisplay)

LaTeX Editor
http://dev.midnightcoding.org/projects/gummi (non-commercial; Gummi)
http://www.xm1math.net/texmaker/ (non-commercial; Texmaker)
http://texlipse.sourceforge.net/ (non-commercial; TeXlipse)

Mathematics
http://www.calculatorium.com/calculators/ (commercial, but free online calculators; Calculatorium)
http://mathomatic.orgserve.de/math/ (non-commercial; Mathomatic)
http://maxima.sourceforge.net/ (non-commercial; Maxima)
http://www.sagemath.org/ (non-commercial; SAGE: Open Source Mathematics Software)
http://www.gnu.org/software/octave/ (non-commercial; Octave)
http://www.sagemath.org/ (non-commercial; Sage)
http://www.jirka.org/genius.html (non-commercial; Genius Mathematics Tool)
http://freemat.sourceforge.net/ (non-commercial; FreeMat; rapid engineering and scientific processing)
http://www.calculatorium.com/best-open-source-mathematical-software/ (list: Best Open Source Mathematical Software; 8/21/13)

Map
https://marble.kde.org/ (non-commercial; Marble [KDE])
https://wiki.gnome.org/Design/Apps/Maps (non-commercial; Maps [GNOME])

Management
http://www.dotproject.net/ (non-commercial; dotProject)
http://www.redmine.org/ (non-commercial; Redmine)
http://wiht.link/PHProjekt-PM (non-commercial; PHProjekt)
http://www.projectlibre.org/home (non-commercial; ProjectLibre; replaces Microsoft Project)
http://www.zoho.com/projects/ (commercial; Zoho Projects)
http://www.thekompany.com/projects/aethera/ (commercial support; free download; Aethera)

Medical
http://wiki.gnumed.de/bin/view/Gnumed (non-commercial; GNUmed)
http://goomedic.com/ (list of softwares; GooMedic.com)
http://www.medicaportal.com/forum/pg/topicview/misc/general-chat/best-open-source-medical-and-healthcare-software/ (Best Open Source Medical and Healthcare Software; 10/16/13)

Memory
http://freshmeat.net/projects/procps/ (non-commercial; procps)

Menu Editor
http://www.smdavis.us/projects/menulibre/ (non-commercial; MenuLibre)

Messaging
https://desktop.telegram.org/ (non-commercial; Telegram)
(non-commercial; SaaS messaging; Mattermost)
http://rambox.pro/# (non-commercial; Rambox; includes email)

Migration
http://www.versora.com/products/progression_desktop.php (commercial; Versora Progression Desktop)

Mobile Internet
http://moblin.org/ (non-commercial; moblin.org)

Mobile Phone
http://www.gnokii.org/ (non-commercial; gnokii)
http://www.multisync.org/news.php (non-commercial; MultiSync)

Modem
http://alumnit.ca/wiki/index.php?page=WvDial (non-commercial: WvDial)
http://alioth.debian.org/projects/minicom/ (non-commercial: minicom)
http://sourceforge.net/projects/pengaol/ (non-commercial; Peng; for AOL)

Note: Movie/Video, Multimaedia, and Music overlaps

Movie/Video (including TV)
http://xinehq.de/ (non-commercial; Xine)
http://www.mplayerhq.hu/design7/news.html (non-commercial; MPlayer)
http://www.mythtv.org/ (non-commercial; MythTV)
http://kaffeine.sourceforge.net/ (non-commercial; Kaffeine)
http://www.kdenlive.org/ (non-commercial; Kdenlive)
http://sinek.sourceforge.net/ (non-commercial; Sinek)
http://www.videolan.org/vlc/ (non-commercial; VLC media player)
http://linux.bytesex.org/xawtv/ (non-commercial; xawtv)
http://backuppc.sourceforge.net/http://kino.schirmacher.de/ (non-commercial; Kino)
http://www.videolan.org/ (non-commercial; VideoLAN)
http://www.icewalkers.com/Linux/Software/523200/LiVES.html (non-commercial; LiVES)
http://www.kraus.tk/projects/konverter/ (non-commercial; Konverter)
http://www.tuxbox.org/ (non-commercial; DBox2; + howto)
http://linuxmce.com/ (non-commercial; linuxMCE)
http://smplayer.sourceforge.net/ (non-commercial; SMPlayer)
http://xbmc.org/ (non-commercial; XBMC)
http://minitube.robertinglin.com/ (non-commercial; minitube; for youtube viewing)
http://tvtime.sourceforge.net/ (non-commercial; tvtime)
http://zattoo.com/en (commercial, but free software; Zattoo; Europe)
http://www.livestation.com/ (commercial, but free software; Livestation)
http://www.boxee.tv/homepage/ (commercial, but free software; Boxee)
http://www.sopcast.org/ (commercial, but free software; SopCast [P2P])
http://ww1.titantv.com/ (commercial; TitanTV)
http://www.octoshape.com/ (commercial; OCTOSHAPE)
http://vivapinkfloyd.blogspot.com/2008/06/linux-video-players.html (11 Video Players for Linux)

Multimedia
http://www.libsdl.org/index.php (non-commercial; Simple DirectMedia Layer)

Music
http://amarok.kde.org/ (non-commercial; Amarok; KDE)
http://www.rosegardenmusic.com/ (non-commercial; Rosegarden)
http://sourceforge.net/projects/dguitar/ (non-commercial; Guitar Pro)
http://www.skale.org/ (non-commercial; SKALE TRACKER>
http://www.soundtracker.org/ (non-commercial; SoundTracker)
http://lmms.sourceforge.net/ (non-commercial; LMMS)
http://www.opensourcemusic.info/ (various stuffs and docs)
http://lilypond.org/web/ (non-commercial; LilyPond)
http://zynaddsubfx.sourceforge.net/ (non-commercial; ZynAddSubFX)
http://www.hydrogen-music.org/ (non-commercial; Hydrogen)
http://www.javazoom.net/jlgui/documents.html (non-commercial; jlGui)
http://audacious-media-player.org/ (non-commercial; Audacious)
http://www.renoise.com/ (non-commercial; Renoise; somposition>
http://www.listen-project.org/ (non-commercial; Listen [GNOME])
http://www.sacredchao.net/quodlibet/ (non-commercial; Quod Libet)
http://decibel.silent-blade.org/ (non-commercial; Decibel Audio Player)
http://www.tuxguitar.com.ar/ (non-commercial; TuxGuitar)
http://www.renoise.com/ (non-commercial; Renoise)
http://moc.daper.net/ (non-commercial; MOC [Music on Console])
http://cmus.sourceforge.net/ (non-commercial; cmus)
http://mp3blaster.sourceforge.net/ (non-commercial; mp3blaster)
http://www.vorbis.com/ (non-commercial; vorbis)
http://www.mpg123.de/ (non-commercial; mpg123)
http://decibel.silent-blade.org/ (non-commercial; Decibel Audio Player; GNOME)
http://traverso-daw.org/ (non-commercial; Traverso [recording & editing])
http://banshee-project.org/ (non-commercial; Banshee)
http://code.google.com/p/clementine-player/ (non-commercial; Clementine)
http://sourceforge.net/projects/guayadeque/ (non-commercial; Guayadeque)
http://projects.gnome.org/rhythmbox/ (non-commercial; Rhythmbox)
http://code.google.com/p/quodlibet/ (non-commercial; Quod Libet)
http://www.exaile.org/ (non-commercial; Exaile)
http://mpd.wikia.com/wiki/Music_Player_Daemon_Wiki (non-commercial; Music Player Daemon)
http://deadbeef.sourceforge.net/ (non-commercial; DeaDBeeF)
http://www.tecmint.com/best-linux-audio-music-players/ (21 Best Music Players That Are Worth Trying On Linux; 11/2/15)

Music Editor (overlap with Music)
http://www.denemo.org/ (non-commercial; Denemo)
http://lilypondtool.blogspot.com/ (non-commercial; LilyPondTool)
http://kwave.sourceforge.net/ (non-commercial; Kwave; KDE)
https://launchpad.net/jokosher/ (non-commercial; Jokosher)

Navigation
http://navit.sourceforge.net/ (non-commercial; Navit)
http://gpsdrive.de/ (non-commercial; GpsDrive)

Network (including network monitor)
http://etherape.sourceforge.net/ (non-commercial; EtherApe)
http://iptraf.seul.org/ (non-commercial; IPTraf)
http://www.nagios.org/ (non-commercial; Nagios)
http://wifi-radar.systemimager.org/ (non-commerical; WiFi Radar)
http://developer.apple.com/networking/bonjour/index.html (commercial; Bonjour)
http://www.wireshark.org/ (commercial, but free basic; Wireshark)
http://www.linuxuser.co.uk/reviews/top-4-linux-network-managers (Top 4 Linux network managers; 10/17/14)

News Readers/RSS
http://newspipe.sourceforge.net/ (non-commercial; Newspipe [email])
http://www.gnome.org/projects/straw/ (non-commercial; Straw [GNOME])
http://syndigator.sourceforge.net/ (non-commercial; Syndigator)
http://kiza.kcore.de/software/snownews/ (non-commercial; Snownews [text])
http://www.cincomsmalltalk.com/BottomFeeder/ (non-commercial; BottomFeeder)
http://liferea.sourceforge.net/ (non-commercial; Liferea)
http://www.mozilla.org/products/firefox/live-bookmarks.html (non-commercial; Live Bookmarks; Firefox web browser extension)
http://inforss.mozdev.org/ (non-commercial; infoRSS)
http://sage.mozdev.org/ (non-commercial; Sage; Firefox web browser extension)
http://www.wizzcomputers.com/Welcome.php (non-commercial; Feedview; Firefox web browser extension)
http://www.rssowl.org/ (non-commercial; RSSOwl)
http://newsbeuter.org/ (non-commercial; newsbeuter)
http://userbase.kde.org/Akregator (non-commercial; Akregator)
http://freshrss.org/ (non-commercial; FreshRSS)
http://www.tuxarena.com/intro/ref_rss.php (Feed Readers for Linux; 10/17/14)

Notes
http://live.gnome.org/Gnote (non-commercial; Gnote)
https://simplenote.com/ (non-commercial; Simplenote)
https://sourceforge.net/projects/nevernote/ (non-commercial; NixNote)
http://www.tuxarena.com/intro/ref_notes.php (Notes-Taking Applications for Linux; 3/17/14)
https://turtlapp.com/ (non-commercial; Turtl)

Optical Character Recognition
http://www.linux-ocr.ekitap.gen.tr/ (list)

Package Manager
http://www.nongnu.org/synaptic/ (non-commercial; Synaptic Package Manager)
http://linux.duke.edu/projects/yum/ (non-commercial; Yum)
http://www.linuxbsdos.com/2011/11/19/top-6-linux-and-bsd-graphical-installation-programs/ (Top 6 Linux and BSD graphical installation programs; 11/19/11)
http://gparted.sourceforge.net/ (non-commercial; GParted)
http://gparted-livecd.tuxfamily.org/ (non-commercail; Gparted-liveCD)
http://www.sysresccd.org/ (non-commercial; SystemRescueCd)
http://www.gnu.org/software/parted/parted.html (non-commercial; Parted)
http://qtparted.sourceforge.net/ (non-commercial; QTParted)
http://www.partimage.org/ (non-commercial; Partition Image)
http://partedmagic.com/wiki/PartedMagic.php (non-commercial; Parted Magic)
http://www.ranish.com/part/ (non-commercial; Ranish)
A http://www.gnu.org/software/guix/ (non-commercial; Guix)
http://www.fs-driver.org/ (non-commercial; Ext2 Installable File System; reads linux files from window)

Password Manager
http://www.fpx.de/fp/Software/Gorilla/ (non-commercial; Gorilla)
http://passwordmaker.org/ (non-commercial; PasswordMaker)
http://passwordmanager.sourceforge.net/ (non-commercial; PwManager)
http://upm.sourceforge.net/(non-commercial; Universal Password Manager)

PDA
http://www.multisync.org/news.php (non-commercial; MultiSync)
http://www.coldsync.org/ (non-commercial; ColdSync)
http://www.jpilot.org/ (non-commercial; J-Pilot)
http://picsnvideos.sourceforge.net/ (non-commercial; J-Pilot Videos Plugin)
http://pilotmanager.sourceforge.net/ (non-commercial; PilotManager)
http://www.pilot-link.org/ (non-commercial; pilot-link)
http://gpe.handhelds.org/ (non-commercial; GPE)
http://www.opensync.org/ (non-commercial; OpenSync; successor of Multisync)

PDF and Postscript softwares listed in Programming section

Pharmacy (overlap with Medical)
http://www.srspharmacy.com/index-3.html (commercial; PKonRx)

Phone (including video phone)
http://www.ekiga.org/ (non-commercial; Ekiga; includes videophone)
http://gphone.sourceforge.net/ (non-commercial; Gnome-o-phone)
http://www.antcom.de/ant-phone/ (non-commercial; ANT)
http://phpaint.sourceforge.net/pyvoicechat/ (non-commercial; Gyach)
http://www.linphone.org (non-commercial; Linphone)
http://www.freeswitch.org/ (non-commercial; FreeSWITCH)
http://live.gnome.org/Empathy (non-commercial; Empathy)
https://jami.net/ (online secure videophone; non-commercial; Jami)
http://www.icanblink.com/ (non-commercial; Blink)
http://www.webrtc.org/ (non-commercial; WebRTC)
https://whereby.com/ (commercial, but free online???; Whereby)
http://www.jitsi.org/ (commercial; Jitsi (SIP Communicator); paid support, but free source)
http://skype.com/ (commercial; Skype; free basics)
http://www.qnext.com/ (commercial; Qnext; free basics; secure)
http://zfoneproject.com/ (commercial; Zfone;secure)
http://www.viber.com/en/> (commercial; Viber; free if wifi to another Viber member)
https://about.riot.im/ (commercial; multi-language; Riot)

Photo (see Graphics also)
http://www.gimphoto.com/ (non-commercial; GIMPPhoto)
http://picasa.google.com/linux/index.html (non-commercial; Picasa)
http://www.gphoto.org/ (non-commercial; gPhoto2)
http://photobatch.stani.be/ (non-commercial; Phatch)
http://f-spot.org/Main_Page (non-commercial; F-Spot)
http://gwenview.sourceforge.net/ (non-commercial; Gwenview)
http://extragear.kde.org/apps/kipi/ (non-commercial; Kipi; KDE)
http://kornelix.squarespace.com/fotoxx/ (non-commercial; Fotoxx)
http://bluemarine.tidalwave.it/ (non-commercial; blueMarine)
http://rawstudio.org/ (non-commercial; Rawstudio)
http://www.rawtherapee.com/ (non-commercial; Raw Therapee)
http://f-spot.org/Main_Page (non-commercial; F-Spot)
http://www.digikam.org/ (non-commercial; digiKam)
http://www.kphotoalbum.org/ (non-commercial; KPhotoAlbum)
http://www.renderpixie.com/ (non-commercial; Pixie)
http://sunflow.sourceforge.net/ (non-commercial; Sunflow)
http://hugin.sourceforge.net/ (non-commercial; RawTherapee)
https://kornelix.net/fotoxx/fotoxx.html (non-commercial; Fotoxx)
http://krita.org/ (non-commercial; Krita [KDE])
https://rawtherapee.com/ (non-commercial; Hugin)
http://www.darktable.org/ (non-commercial; darktable)
http://bibblelabs.com/ (commercial; Bibble)
http://www.lightcrafts.com/linux/ (commercial, but free trial; LightZone)
http://minus.com/ (commercial; Minus; share files & music also)

Point of Sale
http://www.bananapos.com/pos/home.html (non-commercial; BananaPOS)
http://lemonpos.sourceforge.net/ (non-commercial; Lemon Pos)
http://tuxshop.sourceforge.net/index.php (non-commercial; TuxShop)
http://freshmeat.net/projects/bhpos (non-commercial; BananaPos)
http://www.novell.com/products/linuxpointofservice/ (commercial; SUSE® Linux Enterprise Point of Service)
http://www.volantesystems.com/volante/html/ (commercial; Volanté)

Poll
http://www.pollhost.com/ (commercial, but free; Pollhost; online)
http://www.hotscripts.com/Remotely_Hosted/Polls_and_Voting/ (list)

Postscript
http://pages.cs.wisc.edu/~ghost/ (non-commercial; Ghostscript)

Presentation
http://member.wide.ad.jp/wg/mgp/ (non-commercial; MagicPoint)

Printer
http://homokaasu.org/rasterbator/ (non-commercial; Rasterbator)
http://www.turboprint.de/english.html (commercial; TurboPrint)

Privacy
http://www.mozilla.org/en-US/lightbeam/ (non-commercial; Firefox add-on; Lightbeam for Firefox)
http://www.csoonline.com/article/574763/Seven_Firefox_Plug_ins_That_Improve_Online_Privacy (Seven Firefox Plug-ins That Improve Online Privacy); 3/12/10)
https://www.crypho.com/ (non-commercial; Crypho; private chat)
http://bleachbit.sourceforge.net/ (non-commercial; BleachBit; clean cookies, temp. files, logs, etc)
http://www.dazzleships.net/ (non-commercial; SelekTOR)

Programming Editor
http://www.geany.org/ (non-commercial; Geany)
http://www.wxhexeditor.org/ (non-commercial; weHexEditor)
http://worldofgnome.org/5-of-the-best-programming-editors-under-linux-2014/ (5 Of The Best Programming Editors Under Linux [2014]; 1/21/14)
http://devzum.com/2015/01/31/9-best-ides-and-code-editors-for-javascript-users/ (9 Best IDEs and Code Editors for JavaScript Users; 1/31/15)
(non-commercial; Notepadqq)
(non-commercial; Atom)
http://brackets.io/ (non-commercial; Brackets)
https://notepadqq.com/s/ (non-commercial; Notepadqq)

Publishing
http://www.scribus.net/ (non-commercial; Scribus)
http://wordpress.org/ (non-commercial; WordPress)
http://www.latex-project.org/ (non-commercial; LaTex)
http://www.tug.org/ (non-commercial; Tex)
http://kile.sourceforge.net/ (non-commercial; Kile)
http://www.iwebpress.com/ (non-commercial; newspaper; iWebPress)
http://wiki.docbook.org/topic/DocBookAuthoringTools (non-commercial; DocBook Wiki)

Radio
http://www.campware.org/en/camp/campcaster_news/ (non-commercial; Campcaster)
http://www.backbone.com/ (commercial; Backbone)

Reference Management
http://xmodulo.com/reference-management-software-linux.html (What is good reference management software on Linux; 10/10/14)

Reminder
http://todotxt.com/ (non-commercial; Todo.txt)

Robot
http://playerstage.sourceforge.net/ (non-commercial; The Player Project)
http://openrdk.sourceforge.net/ (non-commercial; OpenRDK)
http://www.ros.org/wiki/ (non-commercial; ROS.org)

Router
http://www.infoworld.com/d/networking/review-6-slick-open-source-routers-206810 (Review: 6 slick open source routers; 11/14/12)
http://www.freesco.org/ (non-commercial; FREESCO)

Satellite (see Weather too)
http://www.earth3d.org/ (non-commercial; Earth3D)
http://worldwind.arc.nasa.gov/index.html (non-commercial; World Wind; use java)
https://www.unidata.ucar.edu/software/idv/ (non-commercial; IDV)

Scanner
http://www.sane-project.org/ (non-commercial; SANE)
http://www.xsane.org (non-commercial; XSane)
https://launchpad.net/simple-scan (non-commercial; Simple Scan)
http://gscan2pdf.sourceforge.net/ (non-commercial; gscan2pdf; create pdf from scans)
http://sourceforge.net/projects/quiteinsane/ (non-commercial; QuiteInsanel; GUI frontend for SANE)
http://kooka.kde.org/ (non-commercial; Kooka)
http://www.hamrick.com (commercial; VueScan)

Screen Reader
http://www.linux-speakup.org/ (non-commercial; The Speakup Project)
http://directory.fsf.org/project/gnopernicus/ (non-commercial; Gnopernicus)
https://wiki.gnome.org/Projects/Orca (non-commercial; Orca; [GNOME})

Search
https://duckduckgo.com (web search w/ privacy)
http://lucene.apache.org/nutch/ (web search; non-commercial; Nutch)
http://yacy.net/en/ (non-commercial; YaCy; peer-to-peer web search)
https://ssl.scroogle.org/ (google search w/ privacy)
https://ixquick.com/ (web search w/ privacy)
https://searx.me/ (web search w/ privacy; non-commercial; searX)
http://www.twotoasts.de/index.php/catfish/ (desktop search; non-commercial; Catfish)
http://beagle-project.org/Main_Page (desktop search; non-commercial; Beagle)
http://desktop.google.com/linux/ (desktop search; non-commercial; Google Desktop)
http://www.lesbonscomptes.com/recoll/ (desktop search; non-commercial; Recoll)
http://strigi.sourceforge.net/ (desktop search; non-commercial; Strigi)
http://projects.gnome.org/tracker/ (desktop search; non-commercial; Tracker)
http://docfetcher.sourceforge.net/en/index.html (desktop search; non-commercial; DocFetcher)
http://pinot.berlios.de/ (desktop search; non-commercial; Pinot)

Security (data)
http://www.snort.org/ (non-commercial; Snort)
http://www.insecure.org/nmap/ (non-commercial; Nmap)
http://www.rootkit.nl/projects/lynis.html (non-commercial; Lynis; Security and system auditing tool)
http://www.cipherdyne.org/ (non-commercial; various)
https://grc.com/ (commercial; various programs)
http://www.astaro.com/# (commercial; Astaro's products)
http://www.ipcop.org/ (commercial; IPCop)
http://www.clarkconnect.com/ (commercial; ClarkConnect)
http://www.inmon.com/ (commercial; InMon)
http://www.acronis.com/ (commercial; Acronis)

Security (stolen laptop)
http://preyproject.com/ (non-commercial; Prey)

Server
http://www.apache.org/ (non-commercial; Apache)
http://www.apachefriends.org/en/xampp-linux.html (non-commercial; XAMPP [was LAMPP])
http://www.zimbra.com/ (non-commercial; Zimbra)
http://donaldmcintosh.net/resource/triki (non-commercial; triki; Semantic Web Server)
http://userful.com/products/ (commercial; Desktop Multiplier + Desktop Server + etc)
http://www.aprelium.com/ (commercial; Abyss)

Server Analysis
http://www.webalizer.org/ (non-commercial; Webalizer)
http://www.awstats.org/ (non-commercial; AWStats)
https://my-netdata.io/ (non-commercial; netdata)
https://unix4lyfe.org/darkstat/ (non-commercial; darkstat)
http://www.bbclone.de/ (non-commercial; BBClone)

Sleep mode
http://www.suspend2.net/ (non-commercial; Software Suspend)

Social Media
https://elgg.org/ (social media w/ privacy; non-commercial; elgg)
target="_blank" https://diasporafoundation.org/ (non-commercial; diaspora*)
https://github.com/baedert/corebird (non-commercial; Corebird; use for Twitter)

Software Environment
http://www.eclipse.org/ (non-commercial; Eclipse)

Software Configuration Management System
http://fossil-scm.org/index.html/doc/tip/www/index.wiki (non-commercial; Fossil)

Sound/Audio
http://ardour.org/ (non-commercial; Ardour)
http://audacity.sourceforge.net/ (non-commercial; Audacity)
http://www.nongnu.org/protux/ (non-commercial; Protux)
http://www.xmms.org/ (non-commercial; XMMS)
http://www.arts-project.org/ (non-commercial; aRts)
http://www.videolan.org/vlc/ (non-commercial; VLC media player)
http://ifp-gnome.sourceforge.net/ (non-commercial; iFP-Gnome)
http://www.opensound.com/ (commercial; open sound system)
http://opensource.creative.com/ (commercial, but free; Creative Soundcard)
http://sourceforge.net/projects/ripperx/ (non-commercial; ripperX)
http://nostatic.org/grip/ (non-commercial; Grip)
http://qtractor.sourceforge.net/qtractor-index.html (non-commercial; Qtractor)

Spam
http://popfile.sourceforge.net/ (non-commercial; popfile)
http://spambayes.sourceforge.net/ (non-commercial; SpamBayes)

Speech Recognition
http://cmusphinx.sourceforge.net (non-commercial; Sphinx)
http://www.speech.cs.cmu.edu/pocketsphinx/ (non-commercial; PocketSphinx)
http://brewer123.home.comcast.net/~brewer123/projects/speechlion/README.html (non-commercial; SpeechLion; uses Sphinx)
http://htk.eng.cam.ac.uk/ (non-commercial; HTK)
http://julius.sourceforge.jp/en_index.php (non-commercial; Julius)
http://www.voxforge.org/ (non-commercial; VoxForge; alpha as of 9/27/08)
http://freespeech.sourceforge.net/ (non-commercial; Open Mind Speech' alpha as of 9/27/08)
http://antlr.org/ (non-commercial; ANTLR)
http://freedompenguin.com/articles/matts-quick-tips/transcribe-speech-to-text-with-linux-and-google/ (Chrome/pavucontrol/PulseAudio)
http://live.gnome.org/GnomeVoiceControl (non-commercial; Gnome-Voice-Control)
http://code.google.com/p/voximp/ (non-commercial; voximp)
https://github.com/andre-luiz-dos-santos/speech-app (non-commercial; speech-app)
http://www.handheldspeech.com/ (commercial; Handheld Speech)
http://www.wizzardsoftware.com/wizzard_wizzscribe_si.php (commercial; WizzScribe SI)

Statistic
http://www.gnu.org/software/pspp/pspp.htmlhttps://geckolinux.github.io/ (non-commercial; PSPP)

Stock Ticker
http://www.alphatrade.com/stock-market-software-real-time-quote.php (commercial; E-Gate)
http://a.domaindlx.com/joetzzz/mozdev/stockquote/ (non-commercial; Stock Quote; Firefox web browser extension)

Stolen Laptop
http://preyproject.com/ (non-commercial; Prey)

Surveilance
http://www.torproject.org/index.html.en (commercial; Tor)

System Administrtor
http://www.webmin.com/ (non-commercial; Webmin)
http://cb.vu/unixtoolbox.xhtml (non-commercial; Unix Toolbox)

System Management
http://www.easilize.com/requirements.html Easilize

Tax (including on the web)
http://opentaxsolver.sourceforge.net/ (non-commercial; Open Source Tax Solver)

Terminal
http://www.afterstep.org/aterm.php (non-commercial; aterm)
http://rxvt.sourceforge.net/ (non-commercial; RXVT)
http://extragear.kde.org/apps/yakuake/ (non-commercial; extragear)
http://software.jessies.org/terminator/ (non-commercial; Terminator)
http://roxterm.sourceforge.net/ (non-commercial; RXVT)
https://launchpad.net/clicompanion (non-commercial; CLI Companion)
http://xiki.org/ (non-commercial; Xiki)
http://www.tecmint.com/linux-terminal-emulators/ (20 Useful Terminal Emulators for Linux; 2/1/14)
http://xmodulo.com/2014/05/good-terminal-emulator-linux.html (What is a good terminal emulator on Linux?; 5/28/14)

Terminal Server
http://www.ltsp.org
https://code.google.com/archive/p/termbox/ (non-commercial; termbox)

TELNET Equivalents
http://www.openssh.com/ (non-commercial; OpenSSH)
http://www.pingx.net/secpanel/ (non-commercial; SecPanel)
http://www.vandyke.com (commercial; various programs)
http://www.stdnet.com/ (commercial; various programs)

Text Editor (Emacs & vim are under console commands; programming editors are under Programming)
http://projects.gnome.org/gedit/ (non-commercial; GEdit)
http://www.jedit.org/ (non-commercial; jEdit)
http://kate-editor.org/ (non-commercial; Kate)
http://kate-editor.org/kwrite (non-commercial; KWrite; uses Kate components)
http://tarot.freeshell.org/leafpad/ (non-commercial; Leafpad)
http://www.nano-editor.org/ (non-commercial; Nano)
http://www.nedit.org/ (non-commercial; NEdit)
http://www.kde-apps.org/content/show.php?content=10966 (non-commercial; CUTE)
http://scribes.sourceforge.net/ (non-commercial; Scribe)
http://www.sublimetext.com/ (non-commercial; Sublime Text; programming)
http://www.scintilla.org/SciTE.html (non-commercial; SCIntilla/SciTE.html; programming)
http://www.fckeditor.net/ (non-commercial; FCKeditor [internet])
http://mooedit.sourceforge.net/index.html (non-commercial; medit; programming)
http://www.uvviewsoft.com/cudatext/index.html(non-commercial; CudaText)

Text Editor (collaborative)
http://gobby.0x539.de/trac/ (non-commercial; Gobby)
http://writeboard.com/ (commercial, but free; Writeboard)
http://etherpad.com/ (commercial, but free; Etherpad)
http://www.linuxbsdos.com/2014/10/05/the-best-markdown-editors-for-linux/ (The best Markdown editors for Linux; 10/5/14)

Text-to-Speech
(non-commercial; eSpeak)
http://reecedunn.co.uk/cainteoir/ (non-commercial; Cainteoir Text-to-Speech; uses eSpeak to read ebooks)
http://www.cstr.ed.ac.uk/projects/festival/ (non-commercial; Festival)
http://accessibility.kde.org/developer/kttsd/ (non-commercial; KTTS)
http://www.speech.cs.cmu.edu/flite/ (non-commercial; Flite)
http://freetts.sourceforge.net/docs/index.php (non-commercial; FreeTTS)
http://mary.dfki.de/ (non-commercial; MaryTTS)

Tide
http://www.flaterco.com/xtide/ (non-commercial; XTide)

Tile (Window Manager)
http://www.giuspen.com (non-commercial; X-tile)
http://xmonad.org/ (non-commercial; xmonad)
http://i3wm.org/ (non-commercial; i3)

Torrent
http://libtorrent.rakshasa.no/ (non-commercial; libTorrent and rTorrent Project)
http://www.tuxarena.com/intro/ref_tor.php (BitTorrent Clients for Linux; 3/13/14)

Translators
http://wordtrans.sourceforge.net/ (non-commercial; Wordtrans)
http://freespeak.berlios.de/ (non-commercial; (non-commercial; FreeSpeak)
http://logos-os.dfki.de/ (commercial & open source; OpenLogos)

Tutorial
http://tuxtorial.com/ (non-commercial; Tuxtorial)
http://www.debugmode.com/wink/ (non-commercial; Wink)

Typing
http://tuxtype.sourceforge.net/ (non-commercial; TuxType)

USB Installation
http://unetbootin.sourceforge.net/ (non-commercial; Unetbootin)
http://rufus.akeo.ie/ (non-commercial; Rufus)
http://multibootusb.org/ (non-commercial; multiple distros; MultiBootUSB)
https://etcher.io/(non-commercial; etcher)

Video (including tv; check music also)
http://www.openshotvideo.com/ (non-commercial; OpenShot)
http://xmodulo.com/2014/02/watch-free-online-tv-linux.html (How to watch free online TV on Linux; 2/10/14)
http://www.zdnet.com/non-linear-video-editing-software-open-source-alternatives-to-abobe-premiere-pro-cc-7000027201/ (Non-linear video editing software: Open-source alternatives to Abobe Premiere Pro CC; 3/11/14)
http://www.tuxarena.com/intro/ref_mov.php (Movie Players for Linux; 3/25/14)
http://www.datamation.com/applications/best-linux-video-editors.html (Best Linux Video Editors; 10/26/15)
http://www.theregister.co.uk/2015/12/26/linux_video_editors/ (Feeling abandoned by Adobe? Check out the video editing suites for penguins; 12/26/15)
https://www.mozilla.org/en-US/firefox/hello/ (non-commercial; Firefox Hello)

Virtual Machines
http://www.cl.cam.ac.uk/Research/SRG/netos/xen/ (non-commercial; Xen)

Virtual Network Computing (VNC)
http://www.tightvnc.org/ (non-commercial; TightVNC)
http://www.tightvnc.com/ (non-commercial; TightVNC)
http://www.tightvnc.com/projector/ (commercial, but free; TightProjector)
http://www.kaboodle.org/ (non-commercial; Kaboodle)

Weather (see Satellite too)
http://www.unidata.ucar.edu/software/gempak/ (non-commercial; GEMPAK)
http://weather.unisys.com/wxp/ (non-commercial; WXP)
http://grads.iges.org/grads/ (non-commercail; GrADS)

Web Application Framework
http://www.adobe.com/products/flex/ (commercial & open source; [Adobe] Flex)

Web Analytic
http://piwik.org/ (non-commercial; Piwik)
http://opensource.com/business/14/10/top-3-open-source-alternatives-google-analytics (Top 3 open source alternatives to Google Analytics' 10/23/14)

Web Proxy
http://www.squid-cache.org/ (non-commercial; Squid)
http://www.squidguard.org/ (non-commercial; squidGuard, to be used with Squid)

Web Publishing
http://bluefish.openoffice.nl/ (non-commercial; bluefish)
http://quanta.sourceforge.net/ (non-commercial; Quanta Plus; KDE)
http://www.kompozer.net/ (non-commercial; Kompozer)
http://www.nvu.com/ (non-commercial; Nvu)
http://www.screem.org/ (non-commercial; SCREEM)
http://www.mamboserver.com/ (non-commercial; mambo)
http://www.w3.org/Amaya/ (non-commercial; Amaya)
http://ckeditor.com/ (non-commercial; CKEditor)
http://www.tinymce.com/index.php (non-commercial; TinyMCE; uses java)
https://towtruck.mozillalabs.com/ (non-commercial; TowTruck [Mozilla]; real-time collabration)
https://www.joomla.org/ (non-commercial; Joomla!)

Wiki
http://www.mediawiki.org/wiki/MediaWiki (non-commercial; MediaWiki)
http://www.tiddlywiki.com/ (non-commercial; TiddlyWiki)
http://doxwiki.sourceforge.net/ (non-commercial; doxWiki)
http://sourceforge.net/projects/stickwiki (non-commercial; Wiki on a Stick)

Window Emulator/Simulator/Virtualization
http://www.winehq.com/ (non-commercial; Wine)
http://dosbox.sourceforge.net/ (non-commercial; dosbox)
http://www.dosemu.org/ (non-commercial; dosemu)
http://fabrice.bellard.free.fr/qemu/ (non-commercial; QEMU)
http://bochs.sourceforge.net/ (non-commercial; Bochs)
http://www.codeweavers.com/ http://www.webweaver.nu/html-tips/custom-404.shtml(commercial; CrossOver Office)
http://win4lin.com (commercial; Win4Lin)
http://www.vmware.com/ (commercial; VMware)
http://www.parallels.com/ (commercial; Parallels)
http://www.aclerex.com/ (commercial; AclereX)

Window Manager (not desktop environment)
http://www.beryl-project.org/index.php (non-commercial; Beryl)
http://en.opensuse.org/Compiz (non-commercial; Compiz)
http://icculus.org/openbox/ (non-commercial; openbox)
http://fluxbox.org/ (non-commercial; FluxBox)
http://www.windowmaker.info/ (non-commercial; Window Maker)
http://www.icewm.org/ (non-commercial; iceWM)
http://www.gnu.org/software/screen/ (non-commercial; Screen)
http://awesome.naquadah.org/ (non-commercial; awesome)
http://box-look.org/ (themes for fluxflux, openbox, iceWM, etc)
http://xwinman.org/others.php (list)

Wireless
http://sourceforge.net/projects/ndiswrapper/ (non-commercial; NdisWrapper)
http://madwifi.org/ (non-commercial; MadWifi)
http://www.kismetwireless.net/ (non-commercial; Kismet)
http://www.linux-wlan.org/ (commercial, but open source)
http://blogs.techrepublic.com.com/10things/?p=873 (10 tools to connect to wireless networks in Linux; 7/14/09)
http://resources.zdnet.co.uk/articles/comment/0,1000002985,39714325,00.htm (Ten top wireless connection tools for Linux; 8/14/09)

Word Processor (and Spreadsheet)
http://www.libreoffice.org/ (non-commercial; LibreOffice)
http://www.abisource.com/ (non-commercial; AbiWord)
http://www.koffice.org/ (non-commercial; KOffice)
http://www.koffice.org/kword/ (non-commercial; KWord)
http://www.koffice.org/kspread/ (non-commercial; KSpread)
http://kile.sourceforge.net/ (non-commercial; Kile [LaTeX])
http://www.lyx.org/ (non-commercial; LyX)
http://go-oo.org/ (non-commercial; go-oo)
http://www.openoffice.org/ (non-commercial; OpenOffice)
http://ooextras.sourceforge.net/ (non-commercial; OpenOffice extras)
http://www.ooomacros.org/ (non-commercial; OpenOffice macros)
http://extensions.services.openoffice.org/project/clker_com (non-commercial; clker.com openoffice.org addon)
http://www.worldlabel.com/Pages/openoffice-template.htm (commercial but free templates; OpenOffice; Worldlabel.com)
http://sourceforge.net/projects/ooo-word-filter (non-commercial; filter for MS Word to read ODF)
http://libwpd.sourceforge.net/ (non-commercial filter; WordPerfect filter)
http://www.softmaker.com/english/tml_en.htm (commercial; TextMaker)

Word Processor (Web-based and/or Collaborative Editor)
https://abicollab.net/ (???; AbiChttps://www.openshot.org/ollab; based on AbiWord)
http://www.zohowriter.com (commercial, but free; Zoho Writer)
http://www.thinkfree.com (commercial, but free; ThinkFree)
http://docs.google.com/ (commercial, but free; Google Docs n Spreadsheets)
http://opensource.com/business/15/7/five-open-source-alternatives-google-docs (5 open source alternatives to Google Docs; 7/9/15)
http://oreports.com/ (commercial, but free; OpenReports)
http://www.fengoffice.com/web/ (commercial with free trial; Feng Office)
http://www.ajaxlaunch.com/ajaxwrite/ (commercial, but free; ajaxWrite)
http://www.picoscribe.com/html/picoWrite.html (commercial, but free; picoscribe; office suite)
http://www.live-documents.com/basics.html (commercial, but free; Live Documents)
http://www.cynapse.com/downloads/syncin-desktop-client (commercial; Sync.in)

Workspace
http://fluxspace.sourceforge.net/ (non-commercial; Fluxspace)

http://www.webweaver.nu/html-tips/custom-404.shtml X (Window Display)
http://conky.sourceforge.net/ (Conky used by OpenBox)
http://conky.sourceforge.net/ (non-commercial; conky)

Console Commands

General:

Introduction
http://www.ibm.com/developerworks/linux/library/l-lpic1-v3-103-1/index.html (Learn Linux, 101: The Linux command line; 8/25/09)
http://linux.org.mt/article/terminal
http://www.linuxcommand.org/
http://math.bu.edu/misc/DOCSERVER/raw/sh.pdf (unix)
http://www.unixguide.net/linux/linuxshortcuts.shtml
http://en.flossmanuals.net/gnulinux (FLOSS MANUALS)
http://www.computerworld.com/s/article/9202538/12_Commands_Every_Linux_Newbie_Should_Learn
http://h30565.www3.hp.com/t5/Feature-Articles/The-16-Linux-Shell-Commands-Every-Desktop-Linux-User-Should-Know/ba-p/3093 (The 16 Linux Shell Commands Every Desktop Linux User Should Know; 4/25/12)
http://mylinuxbook.com/linux-shell-environment/ (Linux Shell environment; 10/31/12)
http://www.techspot.com/guides/835-linux-command-line-basics/ (A Beginner's Guide to the Linux Command Line; 6/19/14)
http://linuxcommand.org/lc3_learning_the_shell.php (Learning the Shell)
http://www.tecmint.com/useful-linux-commands-for-newbies/ (Switching From Windows to Nix or a Newbie to Linux - 20 Useful Commands for Linux Newbies; 5/13/14)
http://www.tuxarena.com/intro/intro.php (Introduction to Linux and the Shell; 10/5/13)
http://www.tuxarena.com/intro/cmds.php (Chapter II: Useful General-Purpose Commands; 10/2/14)
https://www.maketecheasier.com/online-resources-for-learning-the-command-line/ (Top 3 Online Resources for Learning the Command Line (For Linux and OS X); 9/5/15)
https://www.guru99.com/unix-linux-tutorial.html (ILinux/Unix Tutorial for Beginners: Learn Online in 7 days; current)

Advanced
http://www.tldp.org/LDP/abs/html/ (Advanced Bash-Scripting Guide; 3/24/09)
http://www.er.uqam.ca/nobel/r10735/unixcomm.html (Some Useful Linux Commands; 2/02)
http://www.linuxuser.co.uk/tutorials/shell-scripting-for-system-administrators-beyond-the-basics/ (Shell scripting for system administrators: beyond the basics; 10/12/10)
http://www.linuxandlife.com/2013/04/some-tips-to-use-command-line-faster.html (Some tips to use the command line faster; 4/15/13)
http://www.tecmint.com/51-useful-lesser-known-commands-for-linux-users/ (51 Useful Lesser Known Commands for Linux Users; 12/13)
http://xmodulo.com/useful-cli-tools-linux-system-admins.html (What are useful CLI tools for Linux system admins; 8/15/14)
http://www.linuxnix.com/23-awesome-less-known-linuxunix-command-chaining-examples/ (25+ Awesome Linux/Unix command chaining examples; 7/26/12)

History
http://www.ibm.com/developerworks/linux/library/l-linux-shells/index.html?ca=drs- (Evolution of shells in Linux; 12/11)

References
http://www.pixelbeat.org/cmdline.html (Linux Commands - a practical reference; 1/7/08)
http://homepage.powerup.com.au/~squadron/(One Page Linux Manual; date???)
http://www.onlamp.com/linux/cmd/ (Linux in a Nutshell, 5th Edition; 2009)
http://www.linuxselfhelp.com/linuxterms.html (Linux terms, commands & programs; 2005)
http://www.ss64.com/bash/index.html (An A-Z Index of the Bash command line for Linux; date???)
http://www.archlug.org/linux-by-example/ (Linux by Example; date???)
http://linux.die.net/man/ (Linux man pages; no date)
http://searchenterpriselinux.techtarget.com/generic/0,295582,sid39_gci1282259,00.html (77 useful Linux commands and utilities; 12/3/07)
http://linux.die.net/Linux-CLI/doc-index.html (GNU/Linux Command-Line Tools Summary; no date)
http://www.linuxmanpages.com/ (linuxmanpages.com; date???)
http://amath.colorado.edu/computing/Workstations/commands.html (Other Basic Commands; unix; 1998)
http://www.laynetworks.com/linux.htm (UNIX / Linux Command Summary ; 2008)
http://www.reallylinux.com/docs/basic.shtml (Basic Linux Commands; 2009)
http://alinuxblog.wordpress.com/2008/08/23/10-must-have-linux-not-only-cheat-sheet/ (list; 10 must-have Linux (and not only) cheat-sheets; 8/23/08)
http://tldp.org/LDP/GNU-Linux-Tools-Summary/html/index.html (GNU/Linux Command-Line Tools Summary; 4/15/06)
http://www.junauza.com/2009/08/10-essential-unixlinux-command-cheat.html (10 Essential UNIX/Linux Command Cheat Sheets; list; 8/09?)
http://www.cyberciti.biz/tips/linux-unix-commands-cheat-sheets.html (Top 10 Best Cheat Sheets and Tutorials for Linux / UNIX Commands; 6/17/09)
http://www.cemdesign.co.uk/blog/post.php?s=2012-07-10-unix-commands-cheat-sheet (Unix Commands Cheat Sheet)
http://www.efytimes.com/e1/fullnews.asp?edid=113848 (Important Shortcuts For Linux Beginners; 8/21/13)
http://www.everydaylinuxuser.com/2013/09/our-favourite-linux-cheat-sheets.html (Our Favourite Linux Cheat Sheets; 9/13)
http://mywiki.wooledge.org/BashFAQ (BASH Frequently Asked Questions)
http://mywiki.wooledge.org/BashGuide (BashGuide)
http://xmodulo.com/2014/07/access-linux-command-cheat-sheets-command-line.html (How to access Linux command cheat sheets from the command line; 7/28/14)
https://www.networkworld.com/article/3268964/how-to-do-math-on-the-linux-command-line.html (How to do math on the Linux command line; 4/17/18)

Misc.
http://mylinuxbook.com/funny-side-of-linux-command-line/ (The funny side of Linux command line; 4/15/13)
http://mylinuxbook.com/funny-and-interesting-linux-commands-part-ii/ (Funny And Interesting Linux Commands – Part II; 5/8/13)
http://www.binarytides.com/linux-fun-commands/ (20 amusing Linux commands to have fun with the terminal; 3/14/14)
http://www.blackmoreops.com/2014/09/18/connect-to-wifi-network-from-command-line-in-linux/ (Connect to WiFi network from command line in Linux; 9/18/14)

Scripts
http://www.freeos.com/guides/lsst/ (Linux Shell Scripting Tutorial; 2002)
http://linux.dbw.org/shellscript_howto.html (How to write a shell script; date???)
http://www.dreamsyssoft.com/shell_prog.jsp (UNIX Shell Scripting Tutorial; date???)
http://www.shellcheck.net/ (shellcheck.net)
http://www.linuxandlife.com/2013/07/how-to-write-scripts-tip-internal-vs.html (Tip to write scripts: Internal vs External commands; 7/15/13)
Various Utilities
http://www.cyberciti.biz/open-source/best-terminal-applications-for-linux-unix-macosx/ (15 Greatest Open Source Terminal Applications Of 2012;1/7/13)
http://xmodulo.com/2014/03/geographic-location-ip-address-command-line.html (How to look up the geographic location of an IP address from the command line; 3/13/14)

Specific: (Also check information from man and info, i.e., "man ls" and "info ls")

apt-get (include clean)
http://www.debian.org/doc/manuals/apt-howto/ch-apt-get.en.html

bc (terminal calculator)
http://xmodulo.com/command-line-calculator-linux.html (What is a good command-line calculator on Linux; 10/21/14)

bootiso (make liveUSB)
https://github.com/jsamr/bootiso
chkrootkit
http://www.chkrootkit.org/

cpu*
http://ask.xmodulo.com/check-cpu-info-linux.html (How to check CPU info on Linux;12/24/14)

emacs
http://www.gnu.org/software/emacs/
http://www.junauza.com/2009/09/quick-and-subtle-introduction-to-emacs.html (A Quick and Subtle Introduction to Emacs; 9/09)
http://rinari.rubyforge.org/ (add-on: Rinari for Ruby on Rail)

find
http://www.binarytides.com/linux-find-command-examples/ (25+ examples of Linux find command – search files from command line; 8/12/13)
https://www.putorius.net/linux-find-command.html (Find Command - Search for files on the Linux Command Line; 7/28/19)

free
http://www.tecmint.com/check-memory-usage-in-linux/ (10 'free' Commands to Check Memory Usage in Linux; 12/4/15)

ftp
http://davelozinski.com/tutorials/ftp/index.php?1367269030663 (The Basics of FTP)

fstab
http://www.tuxfiles.org/linuxhelp/fstab.html (tuxfiles:linuxhelp)

gzip
http://www.gzip.org/
http://www.linuxnix.com/7-linuxunix-gzip-and-gunzip-command-examples/ (7 Linux/Unix gzip and gunzip command examples; 5/25/14)

kill (including pkill & killall)
http://www.tecmint.com/how-to-kill-a-process-in-linux/ (A Guide to Kill, Pkill and Killall Commands to Terminate a Process in Linux; 9/19/13)

http://freshmeat.net/projects/keep/

make
http://www.gnu.org/software/make/manual/make.html

lshw
http://ezix.org/project/wiki/HardwareLiSter

ping
http://ftp.arl.mil/~mike/ping.html

rpm
http://bobcares.com/article45.html (RPM basics)

rpmfind/rpm2html
http://rpmfind.net/

sed
http://www.grymoire.com/Unix/Sed.html (Sed - An Introduction and Tutorial)
http://en.wikipedia.org/wiki/Sed (Wikipedia - sed)
http://www.panix.com/~elflord/unix/sed.html
http://www.cornerstonemag.com/sed/ (sed . . . the stream editor)
http://www.gnu.org/software/sed/manual/ (sed, a stream editor)

sysrq
http://www.makeuseof.com/tag/fix-unresponsive-or-frozen-computers-with-keyboard-shortcuts/ (Fix Unresposive or Frozen Linux Computers ...)

systemd
http://linoxide.com/linux-command/systemd-vs-sysvinit-cheatsheet/ (Colourful ! systemd vs sysVinit Linux Cheatsheet; 9/5/14)
http://n0where.net/understanding-systemd/ (Understanding Systemd; 6/15)
https://www.maketecheasier.com/systemd-what-you-need-to-know-linux/ (Systemd - What You Need to Know; 7/11/15)
http://without-systemd.org/wiki/index.php/Main_Page> (wiki)

su + sudo
http://lifehacker.com/make-sudo-sessions-last-longer-in-linux-1221545774 (Make Sudo Sessions Last Longer in Linux; 8/29/13)
http://www.tecmint.com/su-vs-sudo-and-how-to-configure-sudo-in-linux/ (Difference Between su and sudo and How to Configure sudo in Linux; 3/19/14)

tar
http://www.gnu.org/software/tar/tar.html
http://rholbert.colug.net/pdf/tar.pdf
http://www.nextstep4it.com/categories/unix-command/archive/ (Linux/Unix tar Command with Practical Examples; 4/2/13)
http://www.binarytides.com/linux-tar-command/ (10 quick tar command examples to create/extract archives in Linux; 2/23/15)

tty
http://www.linuxdevices.com/articles/AT5727959130.html (The tty Layer; 8/1/02)

x
http://www.x.org/

urpmi
http://easyurpmi.zarb.org/

useradd
http://www.tecmint.com/add-users-in-linux/ (The Complete Guide to "useradd" Command in Linux - 15 Practical Examples; 3/28/14)

vi & vim
http://www.vim.org/
http://www.viemu.com/a_vi_vim_graphical_cheat_sheet_tutorial.html (Graphical vi-vim Cheat Sheet and Tutorial; 2008)
http://www.linuxconfig.org/Vim_Tutorial (Vim Tutorial; 2009)
http://simpletutorials.com/vim/index.php (Overcoming Basic VIM Frustrations; date???)
http://www.rru.com/~meo/useful/vi/vi.intro.html (VI (and Clone) Introductory Guide; 12/12/98)
http://www.rru.com/~meo/useful/vi/vi.rm.html (VI (and Clone) Editor Reference Manual; 12/12/98)
http://ldn.linuxfoundation.org/article/vim-101-a-beginners-guide-vim (Vim 101: A Beginner's Guide to Vim; 11/20/09)
http://www.linux.com/learn/tutorials/243002-vim-201-an-intermediate-guide-to-vim (Vim 201: An Intermediate Guide to Vim; 11/25/09)
https://www.ibm.com/developerworks/mydeveloperworks/blogs/58e72888-6340-46ac-b488-d31aa4058e9c/entry/linux_vim_editor31?lang=en (Linux vim editor; 10/6/12)
http://tuts.pinehead.tv/2012/10/31/vi-short-cuts-for-beginners/ (VI Shortcuts & Commands For Newbies; 10/31/12)
http://csswizardry.com/2014/06/vim-for-people-who-think-things-like-vim-are-weird-and-hard/ (Vim for people who think things like Vim are weird and hard; 6/23/14)
http://xmodulo.com/useful-vim-commands.html (What are some obscure but useful Vim commands; 11/7/14)
http://www.ibm.com/developerworks/linux/library/l-lpic1-103-8/index.html?ca=drs- (Learn Linux, 101: File editing with vi; 1/4/16)
http://michael.peopleofhonoronly.com/vim/ (Vim Cheat Sheat for Programmers)
https://www.rosehosting.com/blog/vim-tips-and-tricks/ (Vim tips and tricks that you probably never heard of; 10/14/16)

wget
https://www.gnu.org/software/wget/manual/wget.html (GNU Wget 1.15 Manual)

Distributions

General
http://distrowatch.com/ -> major distributions
https://www.distroshare.com/ (DistroShare)
http://www.gooplusplus.com/xsubmenu.php?linux (directory of linux distros)
http://www.gnu.org/distros/free-distros.en.html (Free GNU/Linux distributions)
http://www.tuxradar.com/content/how-choose-best-linux-distro (How to choose the best Linux distro for you; 4/29/09)
http://en.wikipedia.org/wiki/Comparison_of_Linux_distributions (Comparison of Linux distributions)
http://en.wikipedia.org/wiki/List_of_Linux_distributions (List of Linux distributions)
http://www.livecdlist.com/ (The LiveCD List [try a liveCD])
http://www.zegeniestudios.net/ldc/index.php (Linux Distribution Chooser; updated 4/17/09))
http://desktoplinuxathome.com/distro.html(What Linux distribution should you try?; 6/28/09)
http://www.tuxs.org/chooser/ (Linux Distribution Chooser 0.3; date???)
http://polishlinux.org/choose/ (Choose OS; 8/13/05)
http://www.linuxforums.org/reviews/overview_of_the_ten_major_linux_distributions.html (Overview of the ten major Linux distributions; 4/1/06)
http://linux-blog.org/how-to-choose-the-right-distribution-of-linux/ (How-To Choose the Right Distribution of Linux; 11/17/11)
http://www.tuxradar.com/content/distro-picker-0 (Linux Distro Picker; 4/25/13)
http://www.everydaylinuxuser.com/2014/02/analysis-of-top-10-linux-operating.html (Analysis of the top 10 Linux operating systems; 2/8/14)
https://upload.wikimedia.org/wikipedia/commons/1/1b/Linux_Distribution_Timeline.svg (Linux Distribution Timeline)

Make your own
http://www.instalinux.com/cgi-bin/coe_bootimage.cgi (InstallLinux; date???)

Specifics:

ArkOS (Raspberry Pi; privacy)
https://arkos.io/ (Main Site)

ArchBang (Arch Linux w/ Openbox
http://archbang.org/ (Main Site)

Arch Linux [fast, lightweight, console]
http://www.archlinux.org/ (Main Site)

Arch Linux ARM
http://archlinuxarm.org/ (Main Site)

Browser Linux
http://www.browserlinux.com/ (Main Site)

Bunsen Linux (continuation of #!)
https://www.bunsenlabs.org/ (Main Site)

CrunchBang (Debian w/ OpenBox; discontinued)
http://crunchbang.org/ (Main Site)
http://crunchbanglinux.org/ (CrunchBang stuffs)
http://crunchbang.org/wiki/ (Wiki)
http://crunchbanglinux.org/forums/ (forums)
http://mehall.co.cc/beginners.html (Beginner's Guide to Linux/#!)
http://www.willsimpson.org/temp/crunchbang.html (#! linux desktop guide)
http://ostatic.com/blog/crunchbang-beautiful-minimalism (review: Crunchbang - Beautiful Minimalism; 8/22/13)
https://crunchbangplusplus.org/ (!#++; sucessor to !#)

Damn Small Linux [small; FluxBox; debian-based]
http://www.damnsmalllinux.org/ (Main Site)

Debian
http://www.debian.org (Main Site)
http://www.debian.org/doc/ (Docs)
http://www.togaware.com/linux/survivor/ (Docs Online & Book)
http://www.debianhelp.co.uk/ (Docs)
http://dotdeb.org/ (Dotdeb; unofficial repository)
http://www.apt-get.org/ (Unofficial APT repositories)
http://people.debian.org/~debacle/refcard/ (Reference Card)

DeLi(cate) (old computer)
http://delicate-linux.net/ (Main Site)

DoudouLinux (children)
http://www.doudoulinux.org/web/english/

Easy Peasy
http://www.geteasypeasy.com/ (Main Site)

Emmabuntus
http://emmabuntus.sourceforge.net/ (Main Site)
http://emmabuntus.sourceforge.net/forum/ (forum; French)
http://emmabuntus.sourceforge.net/mediawiki/index.php/Emmabuntus:Community_portal (wiki)
http://emmabuntus.sourceforge.net/blog/ (blog; mostly French)
https://en.wikipedia.org/wiki/Emmabunt%C3%BCs (wiki)

Fedora
http://fedoraproject.org/ (Main Site)
http://linuxpoison.blogspot.com/2008/11/multimedia-support-in-fedora-10.html (Complete Dose of Linux Poison; multimedia)
http://rpmfusion.org/ (RPM Fusion: extras for Fedora)
http://www.my-guides.net/en/content/view/174/26/ (myguide.net; docs for various versions)
http://www.tuxradar.com/content/newbies-guide-fedora-12 (docs)
http://www.fedora-netbook.com/ (fedora-netbook)
http://www.unixmen.com/fedora-17-install-codecs-drivers-and-fonts-in-under-5-minutes/ (Fedora 17 – Install Codecs, Drivers and Fonts in under 5 minutes!; 5/31/12)
http://www.unixmen.com/201206-how-to-install-flash-player-on-fedora/ (How to install Flash player on Fedora 17; 6/11/12)

Foresight Linux
http://www.foresightlinux.com/ (Main Site)
http://www.foresightlinux.org/kids.html (kids)

Fuduntu
(Main Site)

GeckoLinux
https://geckolinux.github.io/ (Main Site)

gNewSense [fully free]
http://www.gnewsense.org/ (Main Site)

gOS
http://www.thinkgos.com/ (Main Site)

Ichthux
http://www.ichthux.com/ (distro: Ichthux)
http://alioth.debian.org/projects/ichthux/ (Ichthux distro)

Knoppix
http://www.knoppix.org/ (Main Site)
http://www.knoppix.net/ (wiki)
http://www.extremetech.com/article2/0,1697,1918391,00.asp (Fixing Windows with Knoppix; 2/2/06)
http://www.extremetech.com/article2/0,1697,1928189,00.asp (Fixing Linux with Knoppix; 2/17/09)

http://xmodulo.com/2014/03/geographic-location-ip-address-command-line.html Leenux
http://www.leeenux-linux.com/ (Main Site)

Linux Console
http://www.linuxconsole.org/ (Main Site)

Linux from scratch
http://www.linuxfromscratch.org/

Linux Lite
https://www.linuxliteos.com/betamanual/ (LL Help Manual)

Linux Mint
http://linuxmint.com/ (Main Site)
http://segfault.linuxmint.com/ (Linux Mint Blogs)
http://www.howtoforge.com/the-perfect-desktop-linux-mint-9-isadora (Docs for Linux Mint 9)
http://community.linuxmint.com/tutorial/view/96 (Fluxbox menu; personal)
http://linuxbsdos.com/ask/2011/08/change-screen-resolution-on-linux-mint-11-lxde/ (Change Screen Resolution on Linux Mint 11 LXDE; 8/16/11)
http://community.linuxmint.com/tutorial/view/101 (How to enable your Floppy driver; 2010)
http://douwil7.100webspace.net/linux/Tuning%20LXDE.html (A Beginners Guide To Setting Up Linux Mint LXDE, The Lightweight Champion)
http://www.howtoforge.com/introduction-to-the-linux-mint-cinnamon-desktop (Introduction To The Linux Mint Cinnamon Desktop; 2/19/12)
http://www.linuxbsdos.com/2012/04/25/manual-disk-partitioning-guide-for-linux-mint-debian/ (Manual disk partitioning guide for Linux Mint Debian; 4/25/12)
http://www.noobslab.com/2012/06/install-skype-40-in-ubuntulinux-mint.html (Install Skype 4.0 in Ubuntu/Linux Mint (New Release); 5/12)
http://www.zdnet.com/six-clicks-linux-mint-tips-and-tricks-7000028551/ (Six Clicks: Linux Mint tips and tricks; 4/17/14)
http://trymint.org/ (TryMint)
https://sites.google.com/site/easylinuxtipsproject/first-mint-xfce (10 things to do first in Linux Mint 18.1 Xfce)
https://community.linuxmint.com/idea/welcome (LM Community)
http://segfault.linuxmint.com/ (LM News)

Mageia
http://www.mageia.org/en/ (Main Site)
https://forums.mageia.org/en/ (Forums)

Mandriva (was Mandrake)
http://www.mandriva.com/ (MainSite)
http://forum.mandriva.com/ (Forums)
http://www.mandriva.com/en/support (Support)
http://store.mandriva.com/ (Store)
http://mandrivausers.org/?act=idx (Forums)
http://www.mandrake.tips.4.free.fr/ (Docs)
http://www.jennings.homelinux.net/ (Docs)

mbed OS
http://mbed.org/ (Main Site)

MeeGo
https://meego.com/ (Main Site)

Mepis
http://www.mepis.org/ (Main Site)
http://www.mepislovers.org/forums/index.php (Forums)
http://www.mepisguides.com/ (Guides)
http://www.mepis.org/forum (Forums)

MiniMe (mini PCLinuxOS)
http://www.pclinuxos.com (search for MiniMe)

NanoLinux
http://sourceforge.net/projects/nanolinux/ (Main Page)

Nosonja (simple Arch)
http://nosonja.org/ (main site)

PCLinuxOS
http://www.pclinuxos.com/ (Main Site)
http://www.pclinuxos.com/ -> support -> wiki (Wiki)
http://www.pclinuxos.com/ -> forums/ (Forums)
http://www.pclinuxoshwdb.com/ (Hardware Database)
http://www.pclosmag.com/ (PCLinuxOS magazine)
http://www.mypclinuxos.com/ (News)
http://www.pclinuxonline.com/

PC/OS (Ubuntu w/ fully loaded XFCE)
http://www.pc-os.org/ (Main Site)

PiBang (Crunchbang on Pi [ARM])
http://www.pibanglinux.org/ (Main Site)

http://xmodulo.com/command-line-calculator-linux.html Porteus-kiosk
http://porteus-kiosk.org/index.html (Main Site)

Puppy Linux [small; iceWM]
http://puppylinux.org/main/index.php (Main Site)
http://www.murga-linux.com/puppy/index.php (Forums)

Qimo (for kids)
http://www.qimo4kids.com/ (Main site)

QubeOS (privacy)
https://www.qubes-os.org/ (Main site)

Sabayon Linux
http://www.sabayonlinux.org/

Scientific Linux (SL) [scientific tools]
https://www.scientificlinux.org/

Security-Enhanced Linux
http://www.nsa.gov/research/selinux/index.shtml (Home Page)

Sidux
http://sidux.com/ (Main Site)

Slackware
http://www.slackbook.org/ (Docs)

SuSe (Novell)
http://www.novell.com/linux/suse/ (MainSite)
http://www.opensuse.org/Welcome_to_openSUSE.org (openSUSE)

Tails (The Amnesic Incognito Live System; privacy distro)
https://tails.boum.org/ (MainSite)

TinyMe (mini-PCLinuxOS)
http://tinymelinux.com/doku.php (main site)

Xandros
http://www.xandros.com/ (Main Site)
http://forums.xandros.com/ (Forums)
http://xandros.jammys.net/ (Docs)
http://en.wikibooks.org/wiki/Using_Xandros (wiki book)
http://wiki.linuxquestions.org/wiki/Xandros (wiki book)
http://www.geekconnection.org/ (is/was ??? xandros resources)

Ubuntu
http://www.ubuntulinux.org/ (Main Site)
http://www.ubuntuforums.org/ (Forums)
http://www.linuxaria.com/article/ubuntu-launchpad-ppa?lang=en (Ubuntu, Launchpad and PPA; 11/16/10)

Vector
http://beginlinux.com/desktop_training/159-vector-linux/1367-course-vector-linux (Course: Vector Linux)

WOW! (senior) http://www.mywowcomputer.com/ (linux software & hardware for seniors)

Yoper
http://www.yoper.com/ (Main Site)

Zenwalk Linux! [successor of Minislack]
http://zenwalk.org/ (Main Site)

ZevenOS
http://www.zevenos.com/ (Main Site)

Retailers

Buy places
https://www.osdisc.com/index.html (commercial; OSDisc.com; Linux/BSD/Solaris iso + books)
http://www.geeks.com (commercial; Geeks; hardware/media; not linux-specific)
http://www.tigerdirect.com/ (commercial; Tiger Direct; hardware; not linux-specific)
http://www.meritline.com/ (commercial; Meritline; hardware/media; not linux-specific)
http://www.alwaysinnovating.com/home/index.htm (commercial; Always Innovating; hardware/miniature; not linux-specific)

Linux pre-installed vendors (desktops, servers, laptops, tablets)
http://lxer.com/module/db/index.php?dbn=14 (listing)
http://linuxpreloaded.com/ (listing)
https://puri.sm/ (commercial; Purism; qubeos preinstalled; laptop; privacy)
http://www.opensensesolutions.com/ (commercial; Open Sense Solutions; public [library] desktop, consultant)
http://www.laclinux.com/en/Start (commercial; Los Alamos Computers; high-end workstation and laptop)
http://eracks.com -> desktops (ommercial; eRacks; server, desktop, laptop)
http://symplepc.com/ (commercial; Symple PC; desktop)
http://www.ibexpc.com/linuxsystems.html (commercial; IBEXPC; desktop, workstation)
http://www.linuxcomputersystems.com/ (commercial: Linux Computer Systems; server, workstation)
http://www.system76.com/ (commercial; system76; server, desktop, laptop)
http://www.amnet-comp.com/ (commercial; Amnet Computers; server, workstation)
http://www.asaservers.com/ (commercial; ASA Computers; server)
http://www.aslab.com/ (commercial; ASL; server, workstation)
http://www.emperorlinux.com/ (commercial; Emperor Linux; high-end laptop)
http://www.gamepc.com/ (commercial; Game PC; high-end server, desktop, laptop)
http://groovix.com/store/ (commercial; groovix/open sense solutions; public [library] desktop, consultant)
http://www.linuxcertified.com/ (commercial; Linux Certified; laptop, service)
http://www.linuxloft.com/ (commercial; Linux Loft; service)
http://www.swt.com/ (commercial; SW Technology; server, desktop, laptop)
http://www.pogolinux.com/ (commercial; pogo linux; server, workstation)
http://www.pricepc.com/ (commercial; pricepc.com; server, desktop)
http://www.scronline.com/ (commercial; SCR online; service)
http://www.alvio.com/default.aspx (commercial; Alvio)
http://www.zonbu.com/home/index.htm (commercial; Zonbu; desktop; 15W, $99 + 2 years subscription)
http://www.fit-pc.com/ (commercial; fit-pc; mini-desktop)
http://www.devonit.com/ (commercial; Devon IT; server, software)
http://www.norhtec.com/ (commercial; NorhTec; mostly servers + a desktop and a netbook)
http://us.shuttle.com/ (commercial: Shuttle; desktop)
http://www.thelinuxlaptop.com/ (commercial; The Linux Laptop; laptop)
http://www.thebookpc.com/ (commercial: BookPC; mini-desktop)
http://www.linutop.com (commercial: Linutopq; mini-desktop)
http://www.limepc.com/index.shtml (commercial: LimePC; server, desktop, tablet)
http://store.viatech.com/protected/index.action (VIA Technologies; server, mini-PC)
http://www.picopc.co.uk/ (commercial; Sharp & Tappin Technology Ltd; PicoPC; mini-desktop)
http://linpc.us/ (commercial: LinPC; desktop, laptop)
http://www.thinkpenguin.com/ (commercial: Think Penguin; desktop, laptop)
http://www.eightvirtues.com/ (commercial: Eight Virtues; desktop)
http://trimslice.com/web/ (commercial; Trim-Slice; mini-computers)
http://utilite-computer.com/web/home (commercial; Utilite; mini-computers)
http://www.toysrus.com/shop/index.jsp?categoryId=12807709&camp=redirect:redirect:TRU:tabeo:80212 (commercial; tabeo; kid-friendly tablet)
http://makeplaylive.com/ (commercial: makeplaylive.com; Vivaldis [KDE] tablet)
http://www.linuxmint.com/store_computers.php (commercial: Think Penquin; Linux Mint desktop & notebook)
https://compulab.co.il/ (commercial; CompuLab; mini-PC)
http://www.solid-run.com/ (commercial; CuBox; mini-PC)
http://www.gigabyte.com/MicroSite/342/haswell.html(commercial; GIGABYTE; DIY)
http://cubox-i.com/ (commercial; CuBox-i; pre-sale as of 10/30/13)
http://www.aplex.com.tw/en/home.php (commercial; APLEX Technology; box PC, tablet, embedded system [ includes window OS])
http://www.compactpc.com.tw/en/index.html (commercial; DMP Electronics Inc.; embedded)
http://www.aaeon.com/en/ (commercial; AAEON Technology, Inc.; embedded + others)
http://multitouch.com/ (commercial; PQ Labs; Multi-Touch Screens)
http://entegratec.com/ (commercial; entegra technologies, inc.; tablet)
http://www.aaeon.com/en/ (commercial; AAEON Technology, Inc; tablet, embeddee)
http://www.libiquity.com/ (commercial: Libiquity; "FSF" laptop)
https://www.pine64.org (commercial: Pinebook; laptop, board, computer, tablet, etc.)
https://endlessos.com/home/ (commercial: Endless Computers; mini-desktop)
https://starlabs.systems/ (commercial: Star Labs; laptops)
http://www.psychsoftpc.com/ (commercial: Psychsoftpc)
http://www.linux-netbook.com/netbooks (list of linux netbooks)
https://itsfoss.com/linux-based-mini-pc/ (11 Mini PCs That Come With Linux Pre-installed; 5/8/20)
See netbook (at the bottom) for more

Netbook (mostly ASUS eee laptop)
http://www.eeeuser.com/ (ASUS eee "directory")
http://forum.eeeuser.com/ (eee forum)
http://wiki.eeeuser.com/ (eee wiki)
http://vip.asus.com/login.aspx (register)
http://event.asus.com/eeepc/comparison/eeepc_comparison.htm eee model comparasion table)
http://sourceforge.net/projects/eee-applet (eee applet; ACPI)
http://www.allasus.com/CATALOG/ (commercial; StarTech; search for asus eee; retailer)
http://www.newegg.com/ (commercial; NewEgg.com; search for asus eee; retailer)
http://www.microcenter.com/> (commercial; MicroCenter; search for eeel retailer)
http://directron.com/ (commercial; Directron.com; search for asus eee; retailer)
http://www.jr.com (commercial; J&R; search for asus eee; retailer)
http://milwaukeepc.com (commercial; Milwaukee PC; search for asus eee; retailer)
http://www.costco.com (commercial; Costco; search for asus eee; retailer)
http://www.mobileplanet.com/ (commercial; mobileplanet; search for asus eee; retailer)
http://crucial.com/store/listparts.aspx?model=Eee%20PC%20701 (commercial; crucil; upgrade memory)
TARGET="_blank"> http://www.everydaylinuxuser.com/2013/10/12-great-linux-operating-systems-for.html ( 12 great Linux operating systems for netbooks; 12/20/12)

Cheap mini-size linux computers
http://www.ovalelephant.com/p-2062-mini-pc-android-linux-linaro-a10-chip-1gb-ddr3-ram (Mini PC Android/Linux(Linaro) A10 Chip 1GB DDR3 RAM (Oval Elephant))
http://www.theverge.com/2012/5/22/3036745/via-apc-android-computer-announced (Via's APC, a $49 Android desktop computer, goes on sale this summer; sorry no VIA's link as of 8/4/12)
http://liliputing.com/2012/07/mini-x-tv-box-runs-android-linux-for-under-100.html (Mini X TV Box runs Android, Linux for under $100; if you want this, hunt for it)
http://liliputing.com/2012/07/linux-distributions-that-can-run-on-an-mk802-mini-pc.html (Linux distributions that can run on an MK802 Mini PC)
https://www.miniand.com/products/Hackberry%20A10%20Developer%20Board#buy (Hackberry A10 Developer Board)
https://www.miniand.com/products/Hackberry%20A10%20Developer%20Board (Hackberry A10 Developer Board)
http://apc.io (APC; android PC)
http://liliputing.com/2012/08/great-wall-u310-packs-an-ubuntu-desktop-pc-into-a-keyboard.html (Great Wall U310)
http://cubieboard.org/ (commercial; Cubieboard)
http://www.pengpod.com/ (commercial; PengPod; tablets & mini-PCs)
http://www.aaeonusa.com/products/details/?item_id=1757 (commercial; AAEON; AEC-6401 price?)

Tablets
http://opensource.com/life/10/4/five-open-source-alternatives-ipad (Five open source alternatives to the iPad; 4/4/10)
http://www.engadget.com/2010/04/06/icds-tegra-2-powered-gemini-is-the-most-feature-complete-tablet/ (CD's Tegra 2-powered Gemini is the most feature-complete tablet we've seen yet; 4/6/10)
http://www.pengpod.com/ (commercial; PengPod; tablets & mini-PCs)

Other linux-related stuffs

Christianity
http://www.bibletime.info (non-commercial; BibleTime; bible program)
http://xiphos.org/ (non-commercial; Xiphos [was GNOMESword]; bible program)
http://www.crosswire.org/sword/index.jsp (modules for BibleTime & Xiphos - forget Sword, a window program)
(non-commercial; BPBible)
http://www.linuxforchristians.org/ (news + blogs + other links)
http://cs.uninetsolutions.com/ (ChristianSource and Linux for Christians; mailing list)
http://willem.engen.nl/biblelinks.php (Bible links)
http://pbible.sourceforge.net/ (non-commercial; GTK-PERL BIBLE)
http://biblememorizer.sourceforge.net/index.html (non-commercial; BibleMemorizer)
http://www.adebenham.com/lyricue/
http://www.ebible.com/ (commercial; eBible; free ad supported & paid non-ad; mobile bible program)
http://www.crosswire.org/bibledesktop/ (non-commercial; Bible Desktop)
http://www.crosswire.org/wiki/Frontends:Diatheke (non-commercial; Diatheke; CLI bible)
http://sites.google.com/site/bibledit/home (non-commercial; Bibledit)
http://chaddb.sourceforge.net/ (CHADDB [Database])
http://www.churchdb.org/ (ChurchInfo [Database])
http://healyourchurchwebsite.com/ (Heal Your Church Website; 6/17/11)
http://www.olivetree.com/ (Olive Tree; mobile bible)
http://www.kjv1611.mobi/index.html (KJV mobile bible)
http://blog.eracc.com/2010/12/08/linux-tux-goes-to-church/ (12/8/10)
http://openlp.org/ (non-commercial; OpenLP [projector software])
http://www.mennonite.net/Caravel (non-commercial; Caravel [Content Management])

Email
https://www.rosehosting.com/blog/check-if-an-email-exists/ (How to check if an email address really exists; 8/26/16)
Email Server
http://www.linuxwaves.com/

Hearing Aids
https://opensource.com/article/18/7/open-hearing-aid-platform (Building hearing aids with a Linux-based open hardware board)

Logos
http://www.isc.tamu.edu/~lewing/linux/ (Linux 2.0 Penguins)

Mac (runs linux)
http://www.maconlinux.org/ (non-commercial; Mac-on-Linux)

Searching
http://software.twotoasts.de/index.php?/pages/catfish_summary.html (non-commercial; Catfish; file search)

Smartwatch
https://asteroidos.org/ (non-commercial; AsteroidOS)

Software Repository
http://www.gnu.org/software/software.html
http://freshmeat.net/
http://sourceforge.net/
http://www.icewalkers.com/
http://kde-apps.org/ (KDE)
http://www.kde-look.org/ (KDE)
http://gnomefiles.org/ (GNOME)
http://www.rpmseek.com/index.html (rpm & deb files)
https://github.com/ (GitHub)
http://www.ibiblio.org/pub/linux/
http://autopackage.org (Autopackage)
http://www.linuxsoftware.org/ (Linux Software)
http://directory.fsf.org/ (FSF/UNESCO Free Software Directory)
http://freshrpms.net/ (freshrpms.net)
http://linuxappfinder.com/ (Linux App Finder)
http://www.linux.org/apps/

Web Hosting
http://www.tuxfamily.org/ (free; TuxFamily)

Window (runs linux)
http://www.colinux.org/ (non-commercial; Cooperative Linux)

Vision
http://www.linux-foundation.org/en/Linux_Platform_Weather_Forecast (Linux Weather Forecast)

Programming

General
http://www.advancedlinuxprogramming.com/ (Advanced Linux Programming; download)
http://www.programmersheaven.com
http://www.infoworld.com/d/application-development/10-programming-languages-could-shake-it-181548 (10 programming languages that could shake up IT; 1/3/12)
http://www.alice.org/ (Alice; innovative 3D programming environment)
http://www.codecademy.com (Codecademy)
http://runrev.com/ (LiveCode; beginner programming)
http://www.echoecho.com/index.html (various programming languages)
https://c9.io/ (commercial; Cloud9 IDE; collabarative coding)
http://www.codecademy.com/ (code academy; HTML & CSS, Javascript, jQuery, Python, Ruby, PHP)
https://simpletutorials.com/Home/Index (Simple Tutorials; HTML & CSS, Javascript, VIM, Python, etc)
http://safestars.org/code-review-a-beginners-guide-to-computer-programming-and-web-development/ (Code Review: A Beginner's Guide to Computer Programming and Web Development)
https://usinsuranceagents.com/home-learning-programming-resources (Home Learning: Computer Programming Resources)

Apache
http://www.apache.org/ (Main Site)
http://hub.webring.org/hub/apachesupport (Apache CookbookMain Site)
http://httpd.apache.org/docs/2.0/howto/ (docs)

BASIC
http://www.maxreason.com/software/xbasic/xbasic.html (non-commercial; XBasic)
http://www.kbasic.org/ (commercial, but free Personal Edition; KBASIC)
http://www.janus-software.com/phoenix_features.html (commercial; Phoenix)
http://www.realsoftware.com/ (commercial; REALbasic)

Blog
http://www.theitstuff.com/how-to-host-blog-or-website-with-wordpress (How To Host Your Own Blog Or Website With WordPress; 12/5/15)

C
http://gcc.gnu.org/ (gcc Main Site)
http://www.mingw.org/ (minGW main site; cross-platform)
http://www.freeprogrammingresources.com/ctutor.html
http://www.cs.cf.ac.uk/Dave/C/
http://anjuta.sourceforge.net/ (non-commercial; Anjuta; C/C++ editor)
http://www.cs.virginia.edu/~lcc-win32/ (lcc-win32 for window OS)
http://www.openwatcom.org/index.php/Main_Page (non-commercial; Open Watcom)
http://elevenislouder.posterous.com/pages/introduction-to-c (Introduction to C)

C++
http://www.freeprogrammingresources.com/ctutor.html
http://www.gnacademy.org/text/cc/
http://anjuta.sourceforge.net/ (non-commercial; Anjuta; C/C++ editor)
http://www.openwatcom.org/index.php/Main_Page (non-commercial; Open Watcom)
https://www.ossblog.org/master-c-programming-with-open-source-books (Master C++ Programming with Free Open-Source Books; 2/16/17)

FORTRAN (including 77/90/95)
http://www.gnu.org/software/fortran/fortran.html (GFortran)
http://gcc.gnu.org/onlinedocs/gcc-3.4.1/g77 (g77)
http://people.msoe.edu/~tritt/f77lang.html (Fortran 77 Notes)
http://www.star.le.ac.uk/~cgp/prof77.html (Professional Programmer's Guide to Fortran77)
http://www.nikhef.nl/~templon/fortran.html (Information about running Fortran codes under Linux)
http://www.thefreecountry.com/compilers/fortran.shtml (Free Fortran Compilers)
http://www.eclipse.org/photran/index.php (non-commercial; Photran - An Integrated Development Environment for Fortran)
http://www.openwatcom.org/index.php/Main_Page (non-commercial; Open Watcom)
http://www.scd.ucar.edu/tcg/consweb/Fortran90/F90.html
http://www.scd.ucar.edu/tcg/consweb/Fortran90/F90Welcome.html (Guide to Fortran 90)
http://www.scd.ucar.edu/tcg/consweb/Fortran90/F90Tutorial/tutorial.html
http://www.eclipse.org/photran/index.php (Photran - An Integrated Development Environment for Fortran)
http://www.openwatcom.org/index.php/Main_Page (Open Watcom)
http://www.g95.org/ (g95)
http://apps.nrbook.com/fortran/index.html (Fortran Numerical Recipes [F77 & F90]; online book)
http://www.fortranplus.co.uk/resources/f77book.pdf (Interactive Fortran 77; online book)
http://www.meteor.iastate.edu/classes/mt227/lectures/Formatting.pdf (FORTRAN 90: Formatted Input/Output; fall 2014)

HTML (including CSS; see Websites)
http://www.htmlhelp.com/distribution/ (manuals)
http://werbach.com/barebones/ (reference)
http://www.w3schools.com/ (Directory including tutorial)
http://www.whoishostingthis.com/resources/html-for-beginners/ (HTML for beginners; tutorial)
http://www.math.unm.edu/writingHTML/tut/index.html (WRITING HTML; tutorial)
http://www.html-5-tutorial.com/ (HTML5 - A tutorial for beginners; tutorial)
https://reviewsquirrel.com/html-cheatsheet/ (HTML Cheat Sheet)
http://www.hitmill.com/html/color_safe.html (color palette)
https://html-color-codes.info/ (HTML Color Chart/Picker)
http://txt2html.sourceforge.net/ (text -> html)
http://www.website101.com/cgi-bin/t2h/Mt2h.cgi (text -> html)
http://www.easysw.com/htmldoc/ (commercial; html -> pdf/ps)
http://www.w3.org/ (W3C standards)
http://www.open-of-course.org/index.php (HTML, CSS, Dreamweaver, Symfony tutorials)
http://www.investintech.com/content/webdesignresourceguide/ (A Word on Web Design: Resource Guide for Beginners)
http://www.drdobbs.com/open-source/dart-build-html5-apps-fast/240005631 (Dart: Build HTML5 Apps Fast; 7/15/12)
https://www.w3schools.com/Css/ (CSS Tutorial)
https://www.hostingreviewbox.com/introduction-to-cascading-style-sheets-css/ (Introduction to Cascading Style Sheets (CSS))
http://www.csstutorial.net/ (CSStutorial.net)
http://www.hostingreviewbox.com/introduction-to-cascading-style-sheets-css/ (Introduction to Cascading Style Sheets (CSS))
(non-commercial; JS Bin; collabarative JS/HTML/CSS)
http://icecoder.net/ (non-commercial; ICEcoder; open-source browser code editor)
https://codeanywhere.net/ (commercial, but free signup; Codeanywhere; collabarative HTML, PHP, JavaScript, CSS, and XML)
http://www.echoecho.com/index.html (various programming languages)
http://www.ascii.cl/htmlcodes.htm (HTML Codes - Table of ascii characters and symbols)
https://www.ascii-code.com/ (ASCII Code - The extended ASCII table)
http://www.asciitable.com/> (ASCII Table and Description)
https://en.wikipedia.org/wiki/List_of_Unicode_characters (List of Unicode characters)
http://www.webweaver.nu/html-tips/custom-404.shtml (How To Create a Custom 404 Page)
http://html5test.com/ (HTML5test)
https://hostingfacts.com/web-development-101/ (Web Development & Design 101)
https://turbo.net/browsers (Browser Sandbox - Run any browser online, including Chrome, Firefox, IE 8, IE 9, IE 10, and IE 11, and more.)
https://websitesetup.org/html5-cheat-sheet/ (HTML Cheat Sheet (with new HTML5 tags))
https://www.ossblog.org/get-grips-html-free-books/ (Get to Grips with HTML with Free Books; 6/14/17)
https://www.w3schools.com/html/html_symbols.asp (HTML Symbols)

HTTPS
https://opensource.com/business/15/8/interview-daniel-roesler-utilityapi (Interview with Daniel Roesler, UtilityAPI, Why every website should switch to HTTPS; 8/21/15)
http://www.theregister.co.uk/2015/12/03/letsencrypt_public_beta/ (Free HTTPS certs for all - Let's Encrypt opens doors to world+dog; 12/3/15)
https://www.howtoforge.com/tutorial/getting-started-with-lets-encrypt-on-ubuntu/ (Getting started with Let's Encrypt SSL Certificates on Ubuntu; 2/1/16)
https://linuxconfig.org/generate-ssl-certificates-with-letsencrypt-debian-linux (Generate SSL Certificates With LetsEncrypt on Debian Linux; 1/31/17)
https://www.zdnet.com/article/how-to-use-lets-encrypt-to-secure-your-websites/ (How to use Let's Encrypt to secure your websites; 9/19/17)
http://www.cyberciti.biz/faq/how-to-configure-nginx-with-free-lets-encrypt-ssl-certificate-on-debian-or-ubuntu-linux/ (How to configure Nginx with free Let's Encrypt SSL certificate on Debian or Ubuntu Linux; 9/2/16)

Java
http://www.ibm.com/developerworks/java/newto/ (New to Java programming)
http://www.echoecho.com/index.html (various programming languages)

JavaScript
http://jsfiddle.net/ (non-commercial; JSFiddle)
(non-commercial; JS Bin; collabarative JS/HTML/CSS)
https://codeanywhere.net/ (commercial, but free signup; Codeanywhere; collabarative HTML, PHP, JavaScript, CSS, and XML)
http://www.sitepoint.com/15-best-javascript-charting-libraries/ (The 15 Best JavaScript Charting Libraries)
http://www.linuxjournal.com/content/javascript-all-way-down (JavaScript All the Way Down; 4/9/15)
https://opensource.com/article/17/12/learn-javascript (Top 15 resources for learning JavaScript; 12/7/17)

Pascal
http://www.gnu-pascal.de/gpc/h-index.html
http://www.freepascal.org/
http://www.lazarus.freepascal.org/
http://linux.softpedia.com/progDownload/Free-Pascal-Compiler-Download-121.html

PDF
http://tarot.freeshell.org/leafpad/ (commercial; Evince)
http://www.foolabs.com/xpdf/ (non-commercial; XPDF)
http://view.samurajdata.se/ (non-commercial; online viewer)
http://www.mupdf.com/ (non-commercial; MuPDF)
http://okular.kde.org/ (non-commercial; Okular; for KDE)
http://pwmt.org/projects/zathura/ (non-commercial; zathura)
http://pdfedit.petricek.net/pdfedit.index_e
http://www.prepressure.com/
http://sourceforge.net/projects/pdfcreator/ (non-commercial; PDFCreator)
http://www.eprg.org/pdfcorner/text2pdf/ (non-commercial; text2pdf)
http://convert.neevia.com/ (commercial, but free 1MB; converts to PDF and others)
http://www.physik.uni-wuerzburg.de/%7Evrbehr/cups-pdf/ (CUPS-PDF)
http://www.pdfconverter.com/resources/using-pdf-in-linux (Using PDF in Linux)
http://www.pdfsam.org/ (non-commercial; PDFsam; split and merge)
https://textricator.mfj.io/ (non-commercial; Textricator; extract text from PDF)

PHP
http://www.whoishostingthis.com/compare/phprojekt/resources/ (non-commercial; PHProjekt; Project Management System)
https://www.phphelp.com/ (non-commercial; phphelp.com; directory of php help)

Postscript
http://www.cs.wisc.edu/~ghost/index.htm (ghostscript/gsvies)
http://www.tailrecursive.org/postscript/postscript.html
http://www-cdf.fnal.gov/offline/PostScript/BLUEBOOK.PDF
http://www.adobe.com/products/postscript/pdfs/PLRM.pdf
http://www.prepressure.com/
http://view.samurajdata.se/ (non-commercial; online viewer)

Python
http://www.python.org/
http://inventwithpython.com/ (Learn to program by making computer games)
http://learnpythonthehardway.org/book/ (Learn Python the Hard Way [online book])
https://blog.udemy.com/python-tutorial/ (Learn Python: A Beginner's Guide to Python)
https://www.djangoproject.com/ (Django)
https://linuxconfig.org/learn-python-fundamentals (Learn Python Fundamentals; 12/20/16)

RPM (creating)
http://www.netadmintools.com/art272.html (Roll Your Own RPM)
http://pmc.ucsc.edu/~dmk/notes/RPMs/Creating_RPMs.html (Creating RPMs)

Ruby
https://rubygems.org/ (RubyGem; Ruby add-on)
http://www.blackbytes.info/ (Black Bytes; programmer blog, but mostly Ruby)

Scratch (children programming language)
http://scratch.mit.edu/ (Main Site)

Websites (creating)
http://www.dailyhosting.net/how-to-make-a-website-a-step-by-step-guide/

Wiki
http://wiki.splitbrain.org/wiki%3Amanual (DokuWiki Manual)
http://wiki.splitbrain.org/wiki%3Adokuwiki (DokuWiki Directory)

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