More namespaces:

• Coarse grain trust
• Fine-grain trust
• Relationships to people (family and friends/enemies)

All courtesy of Eric Vitiello’s foaf file (via Phil Ringnalda). Actually Eric’s FOAF file is an excellent all-round example of just how far it can go. Now all we have to do is make every person on the planet get one, and voila instant world personal database.