I stumbled on this streaming radio channel last week for the first time, and have not been able to turn it off since. Holy crap, this stream is so sweet. Deep funk, hip-hop, underground soul, rare grooves. Totally fucking delicious. Individual programs are also offered for download, and the site provides detailed playlist information. In 7 days, I think I've purchased 3 or 4 CDs of material from artists I heard on their shows — listening to the stream on iTunes, then browsing the show playlist archives, then ordering the song or album in question via the iTunes store or Amazon or whatever. Link