From CacheLogic (selling network-monitoring equipment), an eye-opening presentation about Internet traffic patterns. Roughly half all traffic is peer-to-peer; and two-thirds of that is BitTorrent. HTTP is almost down in the noise.

While the Streamsight 510 is unable to identify the actual content of the Peer-to-Peer networks, BitTorrent's dominance is likely to be attributed to two factors: the rise in popularity of downloading television programmes, movies and software; and the size of these files - a MP3 maybe 3-5Mb while a BitTorrent often sees files in excess of 500Mb being shared across the Peer-to-Peer network.