Okay lots of bloggers have been raging about Pandora recently. It’s come from the Music Genome Project and is brilliant example of collaborative filtering (i.e., “people who bought this also bought that”). I hadn’t really taken much notice until one of my colleagues, Natalie, was hooked.
The best thing about it is that it is not just based on sales or genres, but what each song sounds like thanks to thousands of people listening to, well, all the music ever by the looks of it. On top of all of that it’s got a pretty snappy Flash interface too - nicely thought out. Check it out and their blog.