<http://schema.org/topics>
"Business,Business Lists,features,geo-location,Lists,Marketing,Mashable,Small Business,Social Media,social networking,social networks,yelp"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2010/03/20/yelp-for-business/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Mashable+%28Mashable%29>