Might prevent a few of the daily WHERE DO I START WITH...? threads.
It's pretty comprehensive, usually well-written, and generally incredibly useful.
Look.
http://www.allmusic.com/

WHERE DO I START WITH NICK CAVE?
http://www.allmusic.com/artist/nick-cave-p3854/discography

WHERE DO I START WITH SONIC YOUTH?
http://www.allmusic.com/artist/sonic-youth-p5474/discography

WHERE DO I START WITH BOB DYLAN?
http://www.allmusic.com/artist/bob-dylan-p4147/discography

Etc.

Thanks x