UI Sounds - Learn sound design for user interfaces by example 🎵
SOUNDS - Discover music with friends
Fugue - Free and premium stock music for your videos, games, and UI
Wohooo.net - Create Your Own Online Radio Station
Chill N' Sound - Play and mix ambient sounds to boost productivity
Listen2MyRadio - Stop dreaming, start streaming. Free and premium Shoutcast and Icecast audio broadcasting.