E Music  
   Sells downloadable tracks and full albums, and also has a subscription service allowing one to download unlimited MP3 files for a monthly fee.
   http://www.emusic.com/

eClassical  
   The largest classical MP3 music shop on the Internet.
   http://www.eclassical.com/

OSRecords  
   Original MP3 downloads for sale from new and exciting artists - Ambient, Classical, Jazz, and Alternative music. Free samples available.
   http://www.osrecords.com/

Playback Pro  
   MP3 instrumental playbacks for musicians and singers. Selling the latest hits in instrumental versions for immediate download.
   http://www.playback-pro.com/us/index.html

Ritmoteca  
   Large retailer of downloadable Latin MP3s.
   http://www.ritmoteca.com

21stCenturyArtists.com  
   Sells MP3-CDs of independent artists.
   http://www.21stcenturyartists.com/

SDS Records  
   Representing independent artists in a variety of genres including acoustic, rock, and blues. Includes a message board and mailing list.
   http://www.sdsrecords.com/

Home Town HipHop  
   Hip Hop MP3 albums for sale. With album and mixtape previews, free samples, and message board.
   http://www.hometownhiphop.com

Tamil MP3 CD  
   More than 2500 songs available on MP3 CD-ROM.
   http://www.tamilmp3cd.com

New Black Music  
   Various styles of music by new and unsigned artists.
   http://www.newblackmusic.net

Meloware's  
   Dedicated to the preservation of early phonograph records. Includes century old titles.
   http://www.meloware.com/