"BitTorrent Live: A Low Latency Live P2P Video Streaming Protocol"
youtube.com
youtube.com
I have tried and played with SopCast, PPLive, StreamTorrent, AceStream and the likes, and based on my own experiences BitTorrent Live seems to be completely in its own category when it comes to performance, source lag / latency and how well the system seems to overall work (this is also what Bram concludes on the Q/A section at the very end of the video).
Too bad that they can't build BitTorrent Live client on top of WebRTC as the protocol relies on access to UDP sockets. It would be fantastic for adoption that users would not need to install a plug-in to be able to use BitTorrent Live.