Bitcoin - Quora

I've been working on a new electronic cash system that's fully peer-to-peer, with no trusted third party. - Satoshi Nakamoto, 2008

Peer to Peer Bitcoin lending

Coinffeine is an open source, peer-to-peer (P2P) bitcoin exchange platform. With Coinffeine you are able to buy and sell bitcoins securely and anonymously without having to rely on a centralized exchange like MtGox or Bitstamp.

Rollin is a crypto currency-based Bitcoin dice game, where people can play instantly and anonymously.