BitTorrent accounts for a large portion of the total data transferred online, and it is easy to see why. From being decentralized (so that MPAA, RIAA etc. cannot shut it down totally) and utilizing your bandwidth better than direct downloads, to reducing the demands on servers during a Linux distro launch (think Ubuntu Hardy Heron’s release), BitTorrent offers numerous advantages and incentives for everyone.
Instead of using torrent search sites, why not use a toolbar to quicken your searches? Torrent Finder is a Firefox addon that can search torrents from over 180 torrent sites, including the popular ones like Mininova, ISOhunt, Demonoid, Torrent Spy, Pirate Bay etc.
Torrent Finder Toolbar for Firefox

Torrent Finder Toolbar options
Features of Torrent Finder
You can configure Torrent Finder to find torrents from single or multiple torrent search engines. Results can be opened in Torrent Finder search tabs, small windows or in Firefox tabs themselves. Pagination is included (previous and next buttons) to toggle between tabs.
Extra tools to find torrents by keywords (keyword highlighter), to toggle between search engines by category (select toggle), and to easily find the search engine you need (toggle by first letter) have been included too. An incredible number of users (~330,000) have installed the add-on as of today.