Last year, some of our commenters steered me toward ImgBurn as a Nero alternative, and it's been my CD and DVD recording app of choice ever since. It's an excellent lightweight program, handles just about every kind of disc-related task imaginable, and it's totally free.
Cayra is a free desktop application that lets you represent tasks, ideas, concepts and other items in a graphic, well-structured way. Cayra is based on such visualization
GRAMPS is a Free Software Project for Genealogy, offering a professional genealogy program, and a wiki open to all. It is a community project, created, developed and governed by genealogists.
iRadeo is a free online radio platform that allows anyone to stream their MP3 / WAV files. Once installed, iRadeo will automatically detect and stream any supported file format that has been uploaded to the specified directory.
BitNami stacks make it incredibly easy to install your favorite open source software. Application stacks include an open source application and all the dependencies necessary to run it, such as Apache, MySQL and PHP or Ruby. All you need to do is download
MadCat is a multipurpose application that allows you to browse the web, while enjoying quality video content from around the world. MadCat can download you're favorite Rss feeds, Democracy channels, or sniff media links out the webpages you browse.