<http://schema.org/description>
"Dutch company Mediamatic Lab has created a way of checking in on Facebook Places without a smartphone. You simply carry a small smartcard around with you, touching it against reader ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/eu/2011/05/31/smartcards-let-you-check-in-on-facebook-places-without-a-phone/>