The best part of the Grokster decision is how Souter memorializes Modest Mouse into case law:
"Users seeking Top 40 songs, for example, or the latest release by Modest Mouse, are certain to be far more numerous than those seeking a free Decameron, and Grokster and StreamCast translated that demand into dollars."
Also, I'm so sure there are plenty of haXor kids who download both Modest Mouse and the Decameron.