How about everyone post what they use or find?
Reason?
I noticed that there's no list of apps that are the functional equivalents to commercial solutions for "alternative" OSs (anything other than Windows).
It would be good for everyone (beginner to pro user) to see what's out there, that you can get legally for free. Its most useful for the newbie who might consider making the transition to alternative OSs.
NOTE: These applications are open source.
NOTE 2: Ripping DVD apps removed due to Australian Copyright Laws.
To start off...
Office related apps
OpenOffice (Office suite)
=> http://www.openoffice.org/
AbiWord (Word Processing)
=> http://www.abiword.org/
Scribus (Desktop Publishing)
=> http://www.scribus.org.uk/
Gnumeric (Spreadsheet)
=> http://www.gnome.org/projects/gnumeric/
Home Theatre (as in HTPC)
Freevo
=> http://freevo.sourceforge.net/
MythTV
=> http://www.mythtv.org/
Graphics/3D Modelling/viewer/etc
GIMP (Image Manipulation)
=> http://www.gimp.org/
Inkscape (Vector Graphics Editor)
=> http://www.inkscape.org/
Blender (3D modeling/animation/rendering/post-production/interactive creation/playback)
=> http://www.blender3d.com/cms/Home.2.0.html
Yafray (Raytracer)
=> http://yafray.org/
GQview (image viewer)
=> http://gqview.sourceforge.net/
IMGV (image viewer)
=> http://imgv.sourceforge.net/
Audio
Ardour (digital audio workstation)
=> http://ardour.org/
Hydrogen (advanced drum machine)
=> http://www.hydrogen-music.org/
Rosegarden (audio/MIDI sequencer, score editor, general-purpose music composition/editing environment)
=> http://www.rosegardenmusic.com/
LilyPond (Print Music, etc)
=> http://lilypond.org/web/
Audacity (Sound Editor)
=> http://audacity.sourceforge.net/
MusE (MIDI/Audio sequencer)
=> http://muse-sequencer.org/
Programming (draft)
IDEs
Anjuta DevStudio
=> http://anjuta.sourceforge.net/
CodeBlocks
=> http://www.codeblocks.org/
KDevelop
=> http://www.kdevelop.org/
GUI related
GTK+
=> http://www.gtk.org/
Qt (Open-source version)
=> http://www.trolltech.com/products/qt/index.html
WxWidgets
=> http://www.wxwidgets.org/
Web Development
Nvu
=> http://www.nvu.com/
Bluefish
=> http://bluefish.openoffice.nl/index.html
Quanta Plus
=> http://quanta.kdewebdev.org/index.php
Screem
=>http://www.screem.org/
Web browsing/email/etc
Firefox (Web browser)
=> http://www.mozilla.org/products/firefox/
Thunderbird (Email client)
=> http://www.mozilla.org/products/thunderbird/
SeaMonkey (All-in-one: Web-browser, advanced e-mail and newsgroup client, IRC chat client, and HTML editing)
=> http://www.seamonkey-project.org/
Evolution (Email client)
=> http://www.gnome.org/projects/evolution/
CD/DVD Burning
K3b
=> http://www.k3b.org/
Brasero
=> http://projects.gnome.org/brasero/
Virtualisation
QEMU
=> http://fabrice.bellard.free.fr/qemu/
Xen
=> http://www.cl.cam.ac.uk/Research/SRG/netos/xen/
Kernel Based Virtual Machine
=> http://kvm.qumranet.com/kvmwiki
VirtualBox
=> http://www.virtualbox.org/
Running Windows Apps under Linux/Unix
WINE
=> http://www.winehq.com/
Games
America's Army 2.5 (Linux version, stopped at ver 2.5)
=> http://www.3dgamers.com/games/americasarmy/downloads/
Wolfenstein: Enemy Territory
=> http://www.3dgamers.com/games/wolfensteinet/downloads/
Torcs (Car racing sim, OpenGL)
=> http://torcs.sourceforge.net/
FlightGear (Flight Sim, OpenGL)
=> http://www.flightgear.org/
Digital Paint (FPS paintball game based on the Quake engine)
=> http://dynamic.gamespy.com/~digitalpaint/news.php
Scorched3D (That classic game for DOS game gets revamped
with OpenGL on Linux/UNIX)
=> http://www.scorched3d.co.uk/
Media players
MPlayer - The Movie Player
=> http://www.mplayerhq.hu/design7/news.html
VLC
=> http://www.videolan.org/vlc/
xine
=> http://xinehq.de/
Instant Messenging
Pidgin (multi-protocol instant messaging (IM) client)
=> http://www.pidgin.im/
aMSN (Windows Live Messenger clone)
=> http://www.amsn-project.net/
Ayttm (multi-protocol instant messaging (IM) client)
=> http://ayttm.sourceforge.net/
Coccinella (Jabber client with Whiteboard)
=> http://thecoccinella.org/
CSpace (Chat and decentralized filesharing in one)
=> http://cspace.in/
Misc
GPLFlash (An attempt to make a free Flash alternative)
=> http://gplflash.sourceforge.net/
Scilab (Scientific Software Package...Like Matlab)
=> http://scilabsoft.inria.fr/
SystemImager (automates Linux installs, software distribution, and production deployment)
=> http://www.systemimager.org/
Mondo (disaster recovery suite)
=> http://www.mondorescue.org/
BRL-CAD (CAD)
=> http://brlcad.org/
Gnash (GNU Flash movie player)
=> http://www.gnu.org/software/gnash/
