I must say, this is a cool find! Most of the time, I don't bother with radio; even of the independent, non-commercial variety. There's so much I dislike about the business of being 'spoon-fed' music! I am happy with an ever-growing CD collection.
But Internet radio may change all that...
'AccuRadio' seems promising, now that I've heard the jazz section. Link: AccuRadio - The Next Generation of Radio
They seem to cover many genres of music, which is always a plus. It's free to listen to.
Thanks to Fitz, who is the author of the blues blog SqueezeMyLemon, for having the link in his StumbleUpon archives.