<http://schema.org/description>
"We all know about the impending social war that is brewing up between Facebook and Google but today it has taken an interesting turn with Google starting to pay Facebook for advertising ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/socialmedia/2010/09/18/in-shock-move-google-starts-advertising-on-facebook/>