Tribler is an open source BitTorrent-based p2p client that lets you find and share content like video, audio and pictures.
More about Tribler
Tribler is a social community that facilitates filesharing through a peer-to-peer (p2p) network. When the Tribler application program is started it will automatically start searching other users that have Tribler running on their computer. When a connection is established it starts exchanging information. First it exchanges personal information (such as your avatar picture, your friends list, download history, etc.) and information about files that are available in the network. These files can be personal, shared files, but also files that one has received from another person. Learn more.