The Art of Knowledge
"The Friend of a Friend (FOAF) project is about creating a Web of machine-readable homepages describing people, the links between them and the things they create and do. " Basically they are taking XML and making it easier for spiders to make heads ro tales of basic info. INfo like name, purpose, subject, date...etc...
Feel free to make your own here. It also has directions for implementation. Why would you want to implement you ask, or even get into it? "This allows software to process these descriptions, perhaps as part of an automated search engine, to discover information about your and the communities of which you're a member. FOAF has the potential to drive many new interesting developments in online communities. " It just sounds like Friendster.
Link posted by JVMM : 9:14 PM