Spotify - Map shows when two people play same song at same time
Tragofone - White-label VoIP Softphone with WebRTC and Auto-provisioning
Last.fm - The world's largest online music service. Listen online, find out more about your favourite artists, and get music recommendations, only at Last.fm
tSIP - tomeko.net/software: SIP client for Windows.
SoundCloud - Enjoy music & follow favourite artists
Lingo - Empower Creation and Ensure Brand Consistency. Build and Share libraries of visual assets with your entire team — all from your desktop.