TorrentBar – A search extension for Firefox.
isoHunt – A comprehensive BitTorrent search engine that’s updated hourly.
Torrent Reactor – A catalog of torrents from a variety of web sites.
TorrentScan – A torrent search engine that includes a variety of sites and up-to-date file sharing news.
The Slackware Linux Project – A torrent source for Slackware Linux.
bitoogle – A basic BitTorrent search engine.
BTbot – A BitTorrent search engine that also includes forums.
TorrentPortal – A BitTorrent tracker with more than a million registered members.
Yotoshi – A torrent search engine that also features torrent-related news.
PeerIt – A marketplace where you can buy and sell torrents.
TuxDistro.com – Linux-related torrent site.
YouTorrent – A huge legal torrent search engine with more than 300,000 files.
Orb’s Torrent Site Status – Check the status of tons of torrent sites to see if they’re on or offline.TorrentFreak.com – Up-to-date news on the torrent community of both the legal and illegal variety. Occasionally offers legal downloads. They also have a good tutorial on how to start a torrent of your own using some of the most popular clients.
TorrentSpy – A BitTorrent client that shows the current real-time number of complete and incomplete users on a torrent.Anatomic P2P – A modified BitTorrent client that uses various PHP based supertrackers and a decentralized network implementation.
aria2 – A download manager that supports HTTP(S), FTP, BitTorrent, and Metalink protocols.
Bitflu – A free BitTorrent client written in Perl and run as a daemon on Linux and possibly OSX.
BitLet.org – A torrent client that runs right in your browser.
BitThief – A free-riding BitTorrent client that is currently serving as the basis of a scientific experiment and requires measurements of performance.
BTG – A C++ BitTorrent client.
Free Download Manager – A free and open-source download manager that supports HTTP, FTP, andBitTorrent protocols.
G3 Torrent – A free python BitTorrent client.
LimeWire – An open source P2P client.
Miro – A free and open source BitTorrent client for online video that includes tools to publish your videos.
MLDonkey – A P2P client that supports a variety of networks for Linux, Unix, and Windows operating systems.
Shareaza 220.127.116.11 – A free P2P client with multi-network support.
Rufus – A BitTorrent client based on g3torrent.
SymTorrent – The only BitTorrent client for Symbian OS.
Torium – A minimalist torrent client for linux.
TorrentFlux – A torrent file transfer system for Linux, Unix, and BSD.
Unworkable – A free, BSD-licensed BitTorrent client that places efficiency and simplicity among its top priorities.
Tribler – A P2P network that focuses on keyword searches, category browsing and seeing what similar users are downloading.
libTorrent – A C++ BitTorrent library for Unix and Linux.
MonoTorrent – An open source BitTorrent library originally developed as part of Google’s Summer of Code 2006.
Torrent Station 1.1 – A Mac OS BitTorrent client with features like individual limits and folders.
Kyaya Torrent Manager – A simple and open source BitTorrent client.
Torrent Searcher X – A Mac OS X BitTorrent client that searches five major trackers.
TorrentDam.app – A torrent search engine that searches on seven different sites.
iTorrentFlux – A Mac OS X TorrentFlux tool.
Eetee 1.0 – An inexpensive torrent client for Max OS X.
XTorrent – Another Mac OS X torrent client.
Torrent Harvester 0.7b – A torrent search app.
VIP Torrent – An e-mule style torrent client that searches hundreds of P2P networks at once.
Torrent Finder – A torrent search engine with browser plugins for both Firefox and IE.
Torrent Loader – A TorrentSpy-like program that provides both the main data about a torrent and the hierarchic structure.
Torrent Torque – A Delphi-coded torrent client.
Extended BitTorrent – A high-performance BitTorrent client.
Hydranode – A plugin-driven P2P client framework with a graphical UI and multi-tracker support.
MooPolice – BitTorrent client that includes the ability to create torrent files, auto save paths and an editable tracker list.