<http://schema.org/keywords>
"mobile"^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2012/11/26/cyber-monday-shopping-poll/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+mashable%2Fmobile+%28Mashable+%C2%BB+Mobile%29>