Ubuntu-Live-CDs selbst erstellen
btfserv is a program that will let you share a complete directory structure as bittorrent files. It is a metainfo-generator, tracker and seeder in one.
FOgg is a proof of concept implementation of Xiph.Org's ogg and vorbis decoder libraries in haXe. The libraries and an example player compile into AVM2 bytecode that can be used by Adobe's Flash version 10.
Yacufs depends on FUSE. It allows for the on-the-fly transcoding of various file formats. It is highly configurable.