When you get tired of shopping for music via iTunes, here are two worthwhile (though more limited) online audio shops.
Magnatune: pays its artists 50% of the price you pay. You can choose the price ($5 – 18 per album) and the format (WAV, MP3, OGG). 106 artists in various genres.
Bleep: Warp Records’ downloadable music by LFO, Aphex Twin, Boards of Canada, and so much more. No digital rights management so you can do what you like with the files.
What alternate online music stores do you frequent?