Spotify - Map shows when two people play same song at same time
Sononym - Finally, a sample browser that understands audio
SoundCloud - Enjoy music & follow favourite artists
Samplism - Feature-packed, audio asset manager for Mac.
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
Soundly - Functional music for better sleep, focus and relaxation