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