Onefine radio station which I grew up with is WPKN in Bridgeport, Conn. They play a lot of folk music, though they also play other things. Each program host is given four hours and carte blanche to program it anyway they see fit. When it's good, it's some of the best radio you've ever heard, and categories don't fit well.

WPKN is now on the web. The broadcast quality isn't the best, and they can only host 25 listeners at a time (as of July 1999). But I'm particularly fond of Dave Schwartz's show on Sunday evenings.

The website:

http://www.wpkn.org/ontheair.html

--Charlie Baum