<http://schema.org/topics>
"Apps and Software,Business,Dev &amp; Design,Facebook,features,features roundup,Gadgets,instagram,Lifestyle,Mobile,social,Tech,tumblr,Uncategorized,Vine"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2013/12/15/digital-media-resources-98/>