langelgjm writes: The New York Times reports (registration may be required) that Apple and Amazon are attempting to patent methods of enabling the resale of digital items like e-books and MP3s. Establishing a large marketplace for people to buy and sell used digital items has the potential to benefit consumers enormously, but copyright holders aren't happy. Scott Turow, president of the Authors Guild, "acknowledged it would be good for consumers — 'until there were no more authors anymore.'" But would the resale of digital items really be much different than the resale of physical items? Or is the problem that copyright holders just don't like resale?