TuneGlue is something like “Six Degrees of Separation” for music lovers. It’s a site that compiles data from Last.FM and Amazon to create an interactive diagram. Simply type in your favorite artist, hit enter and you’ll be given a “chart” of related artists. You can then click on any of the related artists to “expand” another group of related artists.

The only problem I found with TuneGlue is that there is no way to listen to music from any of the artists through the interface, which I think defeats the purpose a bit. In any case, it’s certainly an interesting and unique way to discover new artists.

Check it out.