<http://schema.org/about>
"Craig Newmark, Founder of Craigslist, was kind enough to send in a short video for our TreeHugger Tips series explaining the small things he does out of concern for the environment.  He touches"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/video-tips/treehugger-tip-craig-newmark-on-using-less.html>