A loving list of online archives

Edward Burne-Jones' illustrations of the works of Geoffery Chaucer

The Crusader Bible in excellent, zoom-in-able resolution

The Book of Kells, again in excellent, zoom-in-able resolution. 

More to follow, I'm just really excited about what the Internet just has for the taking. Thank you to all digitizers, all archivists, and all librarians who direct me to sites like these.