JavaNZB is a tivo for usenet. The program fetches NZB files from Newzbin whenever a new episode for a show is aired according to tvrage, and drops them into a queue directory for download.
JxtASK is a P2P system that is aimed to search, download and share academic content hosted on websites that will join the JxtASK community. Joining is simple: siteadmins must generate(even automatically)a XML catalog which describes the files.
A file sharing protocol and program that lets publishers create domain names and erase and update files. Users view/download files through their browser, so the system looks and feels just like the www, but it's free, anonymous and a 100% distributed.