Development on the Circle has ceased.
The Circle is an open source scalable decentralized peer to peer application. What does that mean? Well, there's no central authority running the show. No entry taxes either, no one booting you off the network, and (in theory) no weak point which can break the whole system. No one even owns the source code. As long as there's one Circle peer running, anywhere in the world, there's still a network.
The Circle currently provides:
* File sharing
* Instant messaging and IRC-style chat
* A personalized, trust based news service
* Proxying for the Debian apt tool
The Circle's scalability derives from its use of a distributed hashtable (aka Chord).
The Circle is written in Python.