<http://schema.org/description>
"Google has just revealed a number of new Google+ stats on its blog, including that so far, more than\u00A0500 million people have upgraded (joined),\u00A0235 million are actively using Google+ ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/google/2012/12/06/google-by-the-numbers-500m-users-235m-of-them-active-and-135m-using-the-stream/>