FOAF files are machine readable (XML) text files that you can use to describe basic information about yourself and the people you know. Anyone can create a FOAF file quite simply by using tools like the excellent Foaf-a-matic. Some community based sites such as TypePad and Ecademy will also generate FOAF files automatically from your profile.
Once you’ve created your FOAF, all you need to do is upload it to your web site, then enter the URL of the file in the box on this page.
PLINK will then remember your details and your friends, and you can see if anybody else knows you!