According to this Reuters story, Bit Torrent now accounts for roughly thirty-five percent of all internet traffic. And not all of it's piracy; many companies distribute software and updates (Linspire, Valve software) via torrent to save bandwidth, and many users distribute pop-culture tid-bits, like John Stewart's recent taunting of the hosts of CNN's Crossfire. Bit Torrent is also used for the academic network Lionshare, for spam stopper Vipul's razor, and for more basic applications like Magic Mirror Backup.