There’s a new website called Six Degrees of Black Sabbath. Essentially, it’s Six Degrees of Kevin Bacon, only with musicians. The title is kinda odd, as you can name any two artists in music history and the site will attempt to connect them in as few moves as possible – with or without Sabbath.
For example, it jumped from Buddy Holly to Six Feet Under in 15 steps. It’s quite the fascinating site in terms of rock history and trivia, as it gives justification for each step. So if you’ve got some free time I’d recommend you spend some time over there.