Tecknik.net: FOAF Autocreation
The FOAF autocreation script takes two links – one to your current FOAF file and one to your OPML blogroll – and produces a brand new FOAF file for you. How? By crawling through the sites in your blogroll looking for autodiscovery links and combining any data it finds with the <foaf:Person> data from your existing FOAF file.
