This site has non stop streaming jazz with all the great artists one after another. Type in the name of an artist you like and it will give you a radio button to click to listen to that artist and similar artists. It also gives you information about each artist as their tracks are being played. It's so cool. Try "Al Cohn & Zoot Sims", or "Saori Yano" and you'll get their tracks as well as others. http://www.last.fm/

been listening. Great!