burnstation is a free media distribution system. It is aimed to be set up at public spaces where everybody is welcome to select and burn self-made compilations to take away for free.
HashPipe is a file sharing network that uses HTTP or HTTPS for all communication and references downloads by their MD5 hash only. Works on any system with PHP5 and a compatible webserver and database. For Windows XP there is now an easy server bundle.
MeltingIce File System is a comprehensive php personal file management script. It allows users to upload to the server it is hosted on, and once the files are uploaded, users may link other people to them, and manage their uploaded files.
File system over a standard SQL open source database, here PostgreSQL. It provides standard methods to establish a link between a disk based file system and implements all what is known on a standard ext2 file system. Interesting for all web developments