This note specifies a Resource Description Framework (RDF) encoding of the vCard profile defined by RFC 2426 and to provide equivalent functionality to its standard format. The motivation is to enable the common and consistent description of persons (using the existing semantics of vCard) and to encode these in RDF/XML.And last, palmcluster.org has a program to turn vCard metadata into FOAF.
The program vcf2foaf is available in two formats. First, you can upload your vCard file or vCard address book using the form above and a FOAF file will be returned to your browser window. The content-type for the file will be "text/xml" rather than the more technically correct "application/rdf+xml". I did this so that most people can preview the results in their browser before saving. Second, you may download the Perl program itself and run it on your computer (or look at the source).