Spotify Web Visualizer - Beautiful full screen visuals for Spotify web player
Bandlab - Capture, nurture, and collaborate on song ideas in the cloud
Visualify - Visualize your top artists on Spotify
Krue - Twitch for music: live streams from amazing musicians
Turntable.fm - Turntable.fm is a social media website developed by Billy Chasen and Seth Goldstein that allows the audience to stream their own music.
Vampr - Connect with musicians, industry & music lovers alike