I2P

I2P (means Invisible Internet Project,IRC Meeting #59: <jrand0m> i2p = i^2p (invisible internet project) though it is not commonly referred to by this name anymore) is a mixed-license free and open source project building an anonymous network (or, more accurately, a pseudonymous overlay network).

The network is a simple layer that applications can use to anonymously and securely send messages to each other. Possible uses include anonymous surfing, chatting, blogging and file transfers.

 References 

Category:Messaging