Spotify - Map shows when two people play same song at same time
Cloud Radio - Cloud Radio is an internet radio station app with thousands of stations so you can listen to your favorite artists and discover new music from around the world.
SoundCloud - Enjoy music & follow favourite artists
Allradio - Allradio is a program for playing internet radio and tv channels.
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
Zeno Radio - Zeno Radio is a radio station streaming app that allows the user to listen to the radio over the internet.