<http://schema.org/about>
"There's still something I really love about a well-worn guidebook, its margins covered with scribbled notes about places I've been or hope to go someday, its pages holding"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/natural-sciences/save-trees-create-free-custom-guides-to-50-cities.html>