Another theft ring site is http://www.4shared.com/signup.jsp 4shared.com. I joined it to leave protest emails at book pirates pages. The one AJ mentions is called Astatalk. I strongly advise anyone published to check these sites and set up a stink about unauthorized ebook 'sharing'. It's a crime.
more at Pagan & Pen on the problem: http://thepaganandthepen.wordpress.com/2009/07/10/here-there-be-pirates/