<http://schema.org/about>
"For the past month, Alexis Madrigal at The Atlantic has been running a good series on energy called, The User's Guide to Energy. In this video, Madrigal explains the two main technologies that have made the recent natural gas boom possible."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/fossil-fuels/alexis-madrigal-explains-natural-gas-boom.html>