This will get some people in the music industry stroking out. From ReadWriteWeb:
Next month, people who download music illegally may start getting anti-piracy warnings from their Internet Service Providers. If recent research is any indication, maybe they should be getting "thank you" notes instead.
Turns out that people who frequently download music without paying for it actually end up buying 30% more music than everybody else, according to a study from the National Assembly at Columbia University. This isn't the first research that has shown file-sharing to be beneficial to artists, but this comprehensive study blows yet another good-sized hole in the conventional music industry wisdom.
It makes sense, though.