Nice recounting of the sources for many common samples, called These Are the Breaks. I have a bad habit in our office of Napstering down whatever track provided the samples in the songs everyone else is playing. Gets on their nerves, but I get to prove my "Geekier Than Thou" status.
Actually, speaking of samples, I just burned a CD tonight for my friend of all the Lomax recordings that provided the samples for Moby's Play album. And I didn't feel too guilty puling them off Napster since they're all public domain anyway. You do know about the Lomax recordings, don't you?