<http://schema.org/topics>
"accessories,Etsy,Facebook,farmville,Fashion,features,Gadgets,Gaming,iPad,ipad apps,iPhone,iPhone Apps,Lists,meninos,shopping,social games,Social Media,t-shirts,tees,Zynga"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2010/08/31/farmville-accessories/>