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.

http://www.musictank.co.uk/reports/filesharing/for-free

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.