The top Bittorrent bites are separated into two categories, indxers and trackers.
Indexers / Dump Sites
These sites work as the "google" for bittorrent, listing torrents tracked all over the web.
1. Mininova.org
2. Suprnova.org
3. Meganova.org
4. Isohunt.com
5. BTJunkie.com
6. Torrentportal.com
8. TorrentSpy.com
9. Sumotorrent.com
10. TorrentMatrix.com
Trackers
These sites act as the hub for the torrents
1. ThePirateBay
2. torrentspy.com
3. torrentreactor.net
4. demonoid.com
5. filesoup.com
6. mybittorrent.com
8. torrentbox.com
9. filelist.org
10. boxtorrents.com