LISNews.com | Herodotus: A Peer-to-Peer Web Archival System

Check out LISNews.com | Herodotus: A Peer-to-Peer Web Archival System for an idea to use a P2P (peer-to-peer) service and cooperative computing (think the Seti@home project) to archive the web. I'm not sure what you would do about losing individual computer systems occasionally, but at least it would have the advantage of having no centralised location. Dissemination of information tends to ensure that it survives the disasters that can otherwise befall it (you can burn a library, or have one system crash, but somewhere it survives, like the 'books' in Fahrenheit 451 who memorised the written word so it would not be lost to censorship.