Over a six-month period, from January 2004 to June 2004, CacheLogic surveyed of network traffic over several major ISP networks in North America, UK, Europe and Asia.
BitTorrent took up 53% of the traffic, eDonkey2000 - 24%, FastTrack - 19%, Gnutella - 4%. CacheLogic rationalizes the increased success of BitTorrent on two points. In recent months, there has been a substantial increase in demand for TV (especially high definition) episodes, which BitTorrent has become well known for. In addition, the average size of files being traded on BitTorrent often exceeds 500 megabytes. According to CacheLogic, BitTorrent is the dominant P2P network on all tested locations except continental Europe.