http://www.music.sony.com/Music/ArtistInfo/ArtistInfo.html
This corner of Sony Music's massive Web site let's you look up information on artists by letter or genre. For each artist you'll find a snippet about their latest release on Sony, along with a biography, discography and in some instances audio clips. Most of these pages don't offer as much information and goodies as your average fan page. On the other hand, many many musicians are in this list.