<http://schema.org/about>
"Regular TreeHugger readers already know that we're enamored with car-sharing services; they reduce the number of cars on the road and make driving a much more efficient experience as a whole. One of the services that's made a splash here in the States"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/cars/zipcar-launches-fancy-new-web-reservation-system.html>