Last.fm is a music recommendation or discover engine.

Pandora is free, personalized radio platform.

SoundCloud is an online audio distribution platform.

BeatSesnse is a real-time music player, provides a way to enjoy and discover great music.

Sonerezh is a self-hosted, web-based application to stream your music, everywhere.

Spotify is online music platform with music discovery and recommendation features.

SIMKL Radio is an online radio platform that helps you discover some free online radio channels.

Deezer is a site for listening to music on demand.

Myspace is a social networking website offering an interactive, user-submitted network of friends, personal profiles, blogs, groups, photos, music, and videos…