http://www.buymusic.com
2. iTunes
http://www.itunes.com
3. EMusic.com
http://www.emusic.com
4. MusicNet
http://www.musicnet.com
5. MusicCity.com
http://www.musiccity.com
6. Streamwaves
http://www.streamwaves.com
7. Napster
http://www.napster.com
8. liquid.com
http://www.liquid.com
9. Rhapsody
http://www.rhapsody.com
10. FullAudio
http://www.fullaudio.com