Acqlite - Acqlite is a Gnutella file-sharing platform based on Cabos, LimeWire and Acquisition.
qBittorrent - Lightweight and open source torrent client that runs on all major platforms.
eMule - eMule is a free peer-to-peer file sharing application for Microsoft Windows.
Deluge - Deluge is a full-featured BitTorrent client for Linux, Unix and Windows.
Vuze - Vuze is a free BitTorrent client used to transfer files via the BitTorrent protocol.
BitTorrent - BitTorrent is a peer-to-peer program developed by Bram Cohen and BitTorrent, Inc.