The AudioDB ~ Online Audio Database


TheAudioDB is a community database of audio artwork and data with a JSON API.

www.theaudiodb.com

Last.fm ~ Online Music Profiling


Last.fm is a music service that learns what you love.

Create your own profile, track what you listen to (we call this scrobbling) and get cool stuff like your own music charts, new music recommendations, and a big ol’ community of other music lovers.

www.last.fm

Free Music Downloads
www.last.fm/music/+free-music-downloads