I am not sure why the Porn Industry has not gone after P2P like the RIAA has. This article explains that the meta-tags involved make finding specific fetishes harder to do. A comment on that page also notes that with P2P, the meta-tags are often false. For example, when the Paris Hilton video first came out, there were a lot of fakers out there who changed the title of their porn-ads to something with Hilton in the name to get more people to download their stuff. However, I feel that like with any search system that people will become more adept at using it and be able to find what they want. For example if I wanted Mardi Gras type stuff, a novice might type Mardi Gras, but later discover that flash is a better search term. Anyway, I think there is a major market for the bringing of lawsuits for violating the pornagraphers copyright. Let's face it, porn drives the internet.