<http://schema.org/about>
"Accusations of \"astroturfing\"&amp;mdash;or the creation of fake grassroots movements to protect powerful interests&amp;mdash;are hardly new. When I wrote about the topic of astroturfing on the"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/corporate-responsibility/should-the-internet-be-protected-from-astroturfing-and-how.html>