Guys, thanks for your help....
Ok, iTunes has a couple of hundred stations in the list, but the list keeps changing. Yesterday I was listening to one station, but today its gone from the tuner list - Why?? I had put it in a playlist and it still works from there. I'd like to know what causes a station to be in the list, or not. iTunes checks somewhere, but where??
Yahoo Radio is also interesting, but tied to Windows Media Player, and Real which I don't like - I can't open these streams in iTunes.