I just got a copy of the Music Tank report on the illegal P2P filesharing problem that has been widely debated in both the music and ISP industries. I even get a mention in it!
The authors have requested that instead of providing a copy of the report I provide a link to their sign up page which seems reasonable to me.
It is definately worth a read if you want to understand what is happening in this space. It expands on some of the stuff I have been posting on the subject.