UbuWeb bills itself as a “YouTube of the Avant-Garde” and I can’t think of a better description. Among other things, they have a great collection of avant-garde film, all available for free viewing. The animation offerings are kind of sparse, but there are some difficult-to-find films that are worth checking out including Robert Breer’s A MAN AND HIS DOG OUT FOR AIR, numerous shorts by Walerian Borowczyk, Ed Emshwiller’s early CG landmark SUNSTONE, Frank and Caroline Mouris’s Oscar-winning FRANK FILM, and a couple of stop-motion classics by Ladislaw Starewicz.