<http://schema.org/description>
"Did you ever wonder how much your Twitter account is worth? Services like Klout certainly attempt to define the value of social media in terms of influence, but according to the blog ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/twitter/2011/12/27/can-you-own-your-twitter-followers-one-blog-seems-to-think-so/>