The AFI is the American Film Institute, and as they say on the front page of their website, they are "a national institute providing leadership in screen education and the recognition and celebration of excellence in the art of film, television and digital media."
They're not quite a college or university, but act as a educational environment for filmmakers. And they know quite a bit about screenwriting.
Fathom.com has published some of the AFI's screenwriting material on their site and it's well worth your time. It's good reading. And good learning.
Click here to visit the AFI's screenwriting seminar on "The Basics of Screenwriting".
