I found out about this site today, Internet Archive. It archives the code so if you no longer have the images in on your domain, then you will not be able to get a full page archive. It is an interesting idea. I found out about the site in a discussion with my team leader about archiving our company history.
Here is the site’s description:
The Internet Archive is building a digital library of Internet sites and other cultural artifacts in digital form. Like a paper library, we provide free access to researchers, historians, scholars, and the general public.