<http://schema.org/description>
"According to Experian Hitwise, Google+'s total monthly US visits have grown 55% since November. 49 million visits were recorded in December 2011 -- the biggest month to date.\r\n\r\nBut ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/google/2012/01/02/google-just-had-its-biggest-traffic-month-of-all-time-up-55-from-november/>