Wow. This is great ! You can listen before buying. Discover new music for free, and don’t dive into the dark depths of P2P music download (not that I am really embarrassed when downloading music from people who already make a fine living out of it, but P2P mostyl means crappy-quality-and-hard-to-find music, as far as I am concerned). Tell it what artists you like and listen to these artists plus other stuff that it thinks you’ll like.
It doesn’t have a whole lot of Jazz artists (most of these days’ popular stuff makes me throw up), but the idea is really brilliant !
Maybe you do not know about it: “http://last.fm”. While Pandora makes its recommendations based on the musical relationship between the artist as perceived by the Pandora team, “last.fm” works by correlating user tags and profile database. “last.fm” radio let you skip as many tracks that you do not like as you wish. “last.fm” has a lot of jazz on line.
Registration is free and does not even require an email address. Clients available for Linux (amarok 1.4.1 amongst others).