Another thought occured to me: when does making an allusion become
stealing another person's ideas or plagarizing?  Is it based on how
big a part the snippet is in the new text or how important a role it
plays or what?  Is something like Prufrock/Waste Land or even Wayne's
World with its Scooby Doo, Laverne & Shirley allusions infringement if
no permission was sought?  What about when Pre-Raphaelites allude to
Renaissance painters, who in turn allude to Greek-Roman classical
referents.  This seems to get into the whole simulations (a la Baudril-
lard) business.  -Sterling