Spotify - Map shows when two people play same song at same time
Radio.co - For radio people, by radio people.
SoundCloud - Enjoy music & follow favourite artists
SHOUTcast Radio - SHOUTcast Radio is the home of free Internet Radio.
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
Live365 - 5,000+ online radio stations run by real people, not generated by computers.