<http://schema.org/about>
"Check out this presentation given by green marketing guru John Rooks during the 2011 Lifestyles of Health and Sustainability conference."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/lifestyle/arts-culture/blogs/watch-john-rooks-ceo-of-the-soap-group-kills-it-at-lohas-2011>