Some interesting research posted in entries below. The participants could be getting more than just music or video, as this environment is also a major conduit for malware Majority of Internet bandwidth consumed by P2P services http://blogs.techrepublic.com.com/tech-news/?p=1651 Consumption moves to 95% at night http://arstechnica.com/news.ars/post/20071128-nocturnal-p2p-transmissions-account-for-95-percent-of-internet-bandwidth.html QUOTE: New research from German deep packet inspection gear maker Ipoque shows that P2P traffic consumes anywhere between 49 and 89 percent of all Internet traffic in the day. At night, it can spike up to an astonishing 95 percent.