Openwhyd - Collect and Share the tracks you love.
BitTorrent - BitTorrent is a peer-to-peer program developed by Bram Cohen and BitTorrent, Inc.
Music Smasher - Find any song. Music Smasher searches Spotify, Rdio, SoundCloud, Bandcamp, and YouTube.
Soulseek - Soulseek® is a unique ad-free, spyware free, and just plain free file sharing application.
Zoff - Collaborate on a live music and video playlist with your friends.
Shareaza - Shareaza is the most luxurious and sophisticated file sharing system you'll find.