Ever since a friend at work turned me on to this site I've been listening non-stop. Tons of great live podcasts and DJ sets. Some of it is more danceable than my taste, but there's a lot of excperimental and ambient stuff that I'm diggin. What's nice is the sets are usually ~ 1/2 hr to over an hr long, so you're not constantly clicking track names to listen: percussionlab.com
Faves so far: Lackluster, Daedelus, Jet Jaguar.