This graph is pretty interesting - demonstrating the rise in popularity of P2P traffic online. That’s years down the bottom, as you can see by ‘94 - when FTP porn was KING.

P4P is a distribution protocol that seeks to lessen the impact of loads of legal, semi-legal and illegal P2P downloading on ISP bandwidth.

P4P Will Make 4 a Speedier Net, Profs Say - MarketingVOX