XBMC is an award winning media center application for Linux, Mac OS X, Windows and XBox. The ultimate hub for all your media.
BRL-CAD is a powerful cross-platform open source solid modeling system that includes interactive geometry editing, high-performance ray-tracing for rendering and geometric analysis, image and signal-processing tools, a system performance analysis benchmark suite, libraries for robust geometric representation.

pdftk is an electronic staple-remover, hole-punch, binder, secret-decoder-ring, and X-Ray-glasses.
PhotoRec is file data recovery software designed to recover lost files including video, documents and archives from Hard Disks.

GADMINTOOLS consists of several easy to use C / GTK+ server administration tools for the following list of servers.
LinuxCNC Home of users of the Enhanced Machine Controller - EMC.

SoundConverter is the sound conversion application for the GNOME environment.
Childsplay is to be educational and at the same time be fun to play.

Eagle Mode is an advanced solution for a futuristic style of man-machine communication, in which the user can visit almost everything simply by zooming in. and Enigma ported to Linux.
Google Keyword tool.

Qucs is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit.
Chandler Project, a Note-to-Self Organizer designed for personal and small-group task management and calendaring. and Open Source Application Foundation.
Nathive is a libre software image editor, similar to Adobe Photoshop, Corel Photo-Paint or The GIMP, but focused on usability, logic and providing a smooth learning curve for everyone.

TeamCity Distributed Build Management and Continuous Integration Server.

The Regex Coach is a graphical application for Windows which can be used to experiment with (Perl-compatible) regular expressions interactively.
QDVDAuthor The goal is to provide an easy-to-use, yet powerful and complete interface to generate DVD menus, slideshows, and videos to burn on a DVD.

DansGuardian filters the content of pages based on many methods including phrase matching, PICS filtering and URL filtering.
Mondo is reliable. It backs up your Debian GNU/Linux server or workstation to tape, CD-R, CD-RW, NFS or hard disk partition.
Secret Maryo Chronicles is an Open Source two-dimensional platform game with a style designed similar to classic sidescroller games.
Nautilus-Sound-Converter is Nautilus extension to convert audio files using the GStreamer framework.

FSlint is a utility to find and clean various forms of lint on a filesystem.
Gourmet Recipe Manager is a simple but powerful recipe-managing application.
Songwrite is a guitar tablature (fingering notation) editor and player, quite similar to TablEdit. In addition to tablatures, it also supports staff, lyrics and drums.
rdiff-backup Easy incremental backups from the command line.

CoolPreviews is a free browser add-on that lets you preview links and rich media without clicking or leaving your current page.
Google SketchUp is software that you can use to create, modify and share 3D models.
DropBox Store, Sync and share your files online.

Byzanz - free opensource Desktop Recording (command-line) tool.
OpenGoo is an Open Source Web Office. It is a complete solution for every organization to create, collaborate, share and publish all its internal and external documents.

Amahi makes managing your home network simpler by centralizing networking services, and automatically managing the complexity for the users of your network.
VMware Server 2 download.
Alice is an innovative 3D programming environment that makes it easy to create an animation for telling a story, playing an interactive game, or a video to share on the web.
ZOHO Productivity and Collaboration Apps.

LyX 1.6 is ready for release
CVL lets you tinker with HDR images on your GPU
K9Copy helps make DVD backups easy
21 of the Best Free Linux Text Editors

Areca is a personal file backup software developed in Java. It is released under the GPL v2.
boxee had developed the first “social” media center. it plays media from your computer and other devices in your home network, as well as connect you to various Internet sources that allow you to stream or download movies, tv shows, music and photos.
Cairo-Dock - Desktop dock for openSUSE Linux.
FOG is a free, open source computer cloning solution and FOGUserGuide.
gThumb is an image viewer and browser for the GNOME Desktop.
Notepad++ is a source code editor and Notepad replacement that supports several languages. (Windows Only).

Celtx is the world's first all-in-one media pre-production software.
Orbit Downloader is devoted to new generation web (web2.0) downloading, such as video/music/streaming media from Myspace, YouTube, Imeem, Pandora, Rapidshare, support RTMP. (Windows only).

smuxi - Smart MUltipleXed Irc the IRC client for advanced users.
LAME is a high quality MPEG Audio Layer III (MP3) encoder licensed under the LGPL.

Gallery is an open source project with the goal to develop and support leading photo sharing web application solutions. more...
Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope. more...
Google Earth combines the power of Google Search with satellite imagery, maps, terrain and 3D buildings to put the world's geographic information at your fingertips.