<http://schema.org/topics>
"data portability,design,Dev &amp; Design,Facebook,features,geolocation,HTML5,location,Mashable,mobility,web 2.0,Web 3.0,Web Apps,web design,Web Design Trends Series,web development"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2010/10/14/web-app-design-trends/>