I use these with UTorrent
Meganova|http://www.meganova.org/search.html?search=
Mininova|http://www.mininova.org/search/?utorrent&search=
Bitenova|http://www.bitenova.org/search.php?search=
BitTorrent|http://search.bittorrent.com/search.jsp?Submit2=Search&query=
Btjunkie|http://btjunkie.org/search?query=
The Pirate Bay|http://thepiratebay.org/search.php?q=
TorrentSpy|http://torrentspy.com/search.asp?query=
Torrentbox|http://www.torrentbox.com/torrents-search.php?search=
Torrentreactor|http://www.torrentreactor.net/search.php?search=&words=
Torrentportal|http://www.torrentportal.com/torrents-search.php?search=
IsoHunt|http://isohunt.com/torrents.php?ext=&op=and&ihq=
PointBlank|http://bt.point-blank.cc/?search=
Seedler|http://www.seedler.org/en/fhtml/search/
Google|http://google.com/search?q=
Google.torrent|http://www.google.com/search?hl=en&lr=&c2coff=1=0&q=filetype%3Atorrent+=