I was trolling around my drive this evening, wondering what to listen to while I was typing. Then I remembered that one of my favorite web-transmissions does a live show on Saturday night (in fact, I've actually played live a time or two).
Stillstream.com provides 24x7 ambient music, with occasional live productions by talented and interesting DJ's. I happened to tune into a show featuring a beautiful performance by my friend Mike Metlay - always a cool treat. In addition to hearing the action, Stillstream has a live chat that includes the DJ, various artists and other ne're-do-wells that keep the evening hopping.
If you enjoy ambient music in its various incarnations, you owe it to yourself to check out Stillstream. When there isn't a live show, Wally the Ambient Robot serves up tracks from various sources, so you always get to hear a treat.