Rager Parloff offered his usual sympathetic thoughts to the concerns of the entertainment industry over file sharing recently in Fortune Magazine. The article does a nice job of explaining the relationships between FasTrack, Kazaa, Morpheus, Grokster, Gnutella, Sharman Networks and Streamcast. Morpheus, for example, decided to move to Gnutella after a dispute with Kazaa got them locked out of the FasTrack network.