<http://schema.org/description>
"If you can't join 'em, beat 'em, right? That's exactly what Google+ extension developer Mohamed Mansour has decided to do.  Mansour has been creating extensions for Google+ ever since ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/apps/2012/04/16/jilted-third-party-google-developer-sets-his-sights-on-bringing-hangouts-to-facebook/>