<http://schema.org/url>
<http://gigaom.com/2013/02/27/albumatic-and-cluster-try-a-fresh-take-on-an-old-problem-group-photo-sharing/screen-cluster/>
<http://gigaom.com/2013/02/27/albumatic-and-cluster-try-a-fresh-take-on-an-old-problem-group-photo-sharing/screen-cluster/>