EarthLink SIPshare, a simple, SIP-based proof-of-concept content sharing application, demonstrates the viability of SIP as a protocol over which peer-to-peer (P2P) applications other than the well-known voice and video cases may be implemented.
Onion Networks builds and licenses data transfer technologies that drastically improve the speed, scalability, reliability, and security of file transfers over global networks.
to provide a framework for finding information within a distributed environment. NeuroGrid is based on the idea of automating the process we use in human society to find out things that we want to know, or the locations of things that we need.
a collaborative effort to help deliver large, freely-downloadable content using peer-to-peer technology. The network is essentially a huge "virtual web server"
the Peer Distributed Transfer Protocol provides a method of transferring files using peers to aid in distribution of content, similar to BitTorrent. PDTP servers export a dynamically changing directory hierarchy, making it somewhat more like HTTP or FTP.