21. Torrent Crazy
Thunderbytes has gone to a membership-only private format. There are many pros and cons to private sites; oftentimes, they are the best way to get help and recommendations from others. You need an invitation to join TB, or you can become a sponsor with a small donation. Give these folks a try, as they come highly recommended as a P2P site.
btscene is a longtime player in the file sharing game. This website does have annoying popups and adult advertising, but it does offer a solid library of torrents. It does a good job of featuring very recent torrents (good for people who follow television shows), and presenting many browsing choices at a glance.