If you want to see some absolutely stunning illustrations, head over the AnimationArchive.org and look at Edmund Dulac's illustrations for The Poetical Works of Edgar Allen Poe (1912). This is about the best there is anywhere.
By the way, the International Animated Film Society is creating a virtual archive of animation. They plan to digitize thousands of animated films for public access and research. The Animation Archive site is part of that effort. If you want to know why someone would create an archive of animation, read this.
Posted by Alessandro at CandlelightStories.com