http://www.live365.com/stations/phillycomposers
Ostensibly "classical", but I've heard Dave Burrell on here and a lot of things that sound improvisatory in nature (a piece by Gene Coleman that I heard last night last night could have been one of Sun Ra's more "spacey" works, all 30+ minutes of it and right now, RIGHT now they're playing something by Ben Schachter that wouldn't be called anything else but jazz) . Whatever. It's not called "new classical" or "new jazz", just "new music", and from Philadelphia (or so it is claimed).
Anyhow, it's a resource, so if you're so inclined, there it is.