A network of secure servers, requiring no central entity to administer user identities or access permissions. Each autonomous server hosts a set of user accounts. Users may link to and access the accounts of all other users in the network. Resources in accounts are private, but users may grant each other...http://www.google.com.au/patents/US20030233541?utm_source=gb-gplus-sharePatent US20030233541 - System and method for network operation
