<http://schema.org/url>
<http://thenextweb.com/media/2011/12/12/this-week-in-news-reading-the-aggregator-space-is-heating-up/>
<http://thenextweb.com/media/2011/12/12/this-week-in-news-reading-the-aggregator-space-is-heating-up/fly-twitter-520x286/>