<http://schema.org/description>
"Social media already adds a personal layer to our online experience, but next-generation Web services are tapping the power of the cloud and massive data sets to bring us a new level ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/insider/2013/08/21/the-personalized-web/ranker/>