I've played around with several internet music gizmos over the years, and right now I'm impressed by Pandora. First off the price is right, it's free. Second, the selection of music is pretty good. Basically they let you create your own radio stations. You start off by selecting an artist or song you like, they play that and then add other tracks they think are similar. You can then tell them a track doesn't fit, or that it's an expecially good fit, or add more artists or songs to that station. I've been playing around with it for a week and set up reasonable post-bop, sad female alt-country, Laswellian outernational, and hard post-punk stations. They keep introducing straight house tracks into my glitchy dance station, and lame emo strummers to my sixties poets (Dylan, Scott Walker) station, but even those keep improving as I vote on their selections. Instead of using an another-people-that-like-what-you-liked system like Amazon, they've hired musicologist to classify tracks by their musical qualities. My impression is that works fine when you want a particular sound, but won't pick up on artists' poetical sensibility. They made the old dear's day when they selected Amy Rigby's Are We Ever Gonna Have Sex Again? for the alt-country station. The album's in the mail.  ¶ 7:33 PM