tracker for textbooks

please suggest some trackers for textbooks

http://librarypirate.me
http://www.ebookvortex.com/
http://www.freeetextbooks.com/
http://ebooks-shares.org/
http://docspedia.org/
http://www.myanonamouse.net/

thanks

I've also found stuff I need on IPT,WhatCD,Waffles,TorrentDay, and even demonoid.

You might search Google for the item of interest adding an identifier like torrent.