Eric Zimmerman, who we talked about in relation to the notion of the Magic Circle, has written a brilliant piece on Gamasutra, in the defense of the notion of the Magic Circle. I highly recommend reading it, if only to see the kind of academic arguments that go on!
http://www.gamasutra.com/view/feature/6696/jerked_around_by_the_magic_circle_.php?page=1
