Randomly on IRC last night, someone mentioned a site called Gnoosic which suggests new music based on artists you tell it are your favourites. I was rather sceptical about how well it worked after I tried it.

But this morning, I'm pretty amazed at how well it worked for me. My three artists were Apocalyptica, Sigur Ros and Electrelane. It told me that I'd probably like a group called Mogwai. I'm listening to some of their stuff now and the site wasn't wrong. It's great music and I can hear bits of all three of my artists in their music.