Lawrence Lessig, "Remix: Making Art and Commerce Thrive in the Hybrid Economy. Lessig's persuasive argument against current copyright law differentiates what he calls RO ("read only") culture, characteristics of most of the 20th c, from RW ("read/write") culture, which has been facilitated by digital technology and is now the most commonplace form of creativity for a younger generation.
Cariou v. Prince (1994)
derivativeness → transformativeness
Cambell vs. Acuff-Rose Music Inc, established that parody, like other commentary and criticism, may claim fair use. "The enquiry focuses on whether the objects of the original creation, or whether and to what extent it is 'transformative,' altering the original with new expression, meaning, or message. The more transformative the new work, the less will be the significance of other factors, like commercialism, that may weigh against a finding of fair use."