"Big Brother in the form of an increasingly powerful government and in an increasingly powerful private sector will pile the records high with reasons why privacy should give way to national security, law and order and the like." - Justice William O. Douglas

Tracker Top Ten “No registration required”

http://isohunt.com/

http://www.sumotorrent.com/

http://www.mininova.org/

http://thepiratebay.org/ Soon to be removed and be careful of the now many fake torrents

http://onlytorrents.com/

http://www.torrentreactor.net/

http://btjunkie.org/

http://www.torrentz.com/

http://torrentbox.com/torrents-browse.php?news

http://fenopy.com/tracker/view_8497.html

Games

http://www.gamestorrents.com/

Also you can search through over a thousand tracker listings at   

http://yoxyz.com