CyBeRGoth's SPC700 Snes Music Archive
Files from many Super Nintendo games.

Zophar's Domain: SPC Archive
Over 18,000 Super Nintendo files.

The Blue Bomber's Multimedia
Various files for the Super Nintendo.

Skytopia
Hundreds of individual SNES tunes examined and classed, with mini-reviews and trivia of the best. Music judged according to rhythm, melody, intricacy and general orchestration.

SNES Music Box
Contains 75 hand-picked essential SPC files.

Voidaudio.net
Over 11000 SPCs and other audio formats.