Hi, Sapper - we don't have an edited PermaThread, but this thread has good information on a lot of folk radio programs, many of which are available online.
If somebody want to start and maintain an online radio permathread, I'd be glad to help them set one up. I've found it's a lot of work to maintain a PermaThread and keep it up-to-date, so I manage only a few of them myself.

I'm still looking for a volunteer to take over the "What's On" PermaThread.

PermaThreads are edited threads that are intended to serve primarily as a resource for reference information. There's a PermaThread Index in the FAQ, and another on the Mudcat Site Map and PermaThread Index (on the dropdown menu at the top of the list of threads on the Forum Menu.
-Joe Offer-