The intent behind TorrentSpy is to give the BitTorrent power-user all the information they can get in one place. The primary motivating feature is the ability to see in real time the current number of complete/incomplete users on a torrent. The other neat feature is the ability to see which of your files in a multi-file torrent are complete and which are not. It can easily be set up to work as the default .torrent application, so that you will always know the status before you start your download. It gives you quick shortcuts to related Tracker web interfaces, and it's got a smattering of other fine features.

Azureus implements the BitTorrent protocol using java language and comes bundled with many invaluable features for both beginners and advanced users.

ABC is an improved client for the Bittorrent peer-to-peer file distribution solution. ABC is based on BitTornado which extended from from Original Bittorrent Core System.

Shareaza is a universal peer-to-peer client for Windows, free of spyware or bundled products. It's feature-rich and won't cost you a single penny.

G3 Torrent, a feature rich and graphicaly empowered bittorrent client written in python.

DC++ announces the freedom to share! DC++ is an open source client for Windows for the Direct Connect network. Direct Connect allows you to share files over the Internet without restrictions or limits. The client is completely free of advertisements and has a nice, easy to use interface. Firewall and router support is integrated and it is easy and convenient to use functionality like multi-hub connections, auto-connections and resuming of downloads.

eMule is one of the biggest and most reliable peer-to-peer file sharing clients around the world. Thanks to it's open source policy many developers are able to contribute to the project, making the network more efficient with each release.

eMule Plus is a new generation eMule compatible client created to improve the original GUI and to bring you the best experience ever. Give it a try and feel the boogie ;) eMule Plus does not contain any spyware, adware or the like. It's open source and free for life.

eMule Morph contains all the features from official eMule and some more. You do not need to run/install official eMule to use morph. Everything is in one big package. This is not a plugin, it is a complete replacement with lots of extra features.

LimeWire, the Fastest File Sharing Program on the Planet
LimeWire is a file sharing program running on the Gnutella Network. It is open standard software running on an open protocol, free for the public to use. LimeWire allows you to share any file such as .mp3s, .avis, .jpgs, .tiffs, etc. Limewire is written in Java, and will run on Windows, Macintosh, Linux, Sun, and other computing platforms. Publish your original content to the world without setting up a website!