Corbis (a photo agency owned by Bill Gates) handled licensing Marvel Comics images for editorial and advertising use.
It apparently didn't work out too well, since the partnership no longer exists, nor does the link (which was still operational until late last year).
However, Design Commission, the company who designed the really kool web interface for the partnership's pages have a functioning mockup of the Corbis/Marvel webpages on their corporate website.
"Corbis selected Design Commission to create a unique experience using Flash and XML, where users could explore a wide, yet deep, snapshot of Marvel’s archive in a fluid and engaging environment."
Admire and enjoy a lost piece of Marvel history!