Looking for some new music? Check out Music Plasma. Go here and type your favorite band or musician in the box. Click enter and watch it generate a graphic of that musician/band's universe...
You can also do it with movies.
It isn't perfect, but it is pretty fun to play with. It sometimes misses obvious connections and it would be even cooler if it could recommend specific albums or songs, but it is worth a look nonetheless.
Anyone know of other similar kinds of websites?