<http://schema.org/url>
<http://gigaom.com/2011/06/03/groupon-founders%e2%80%99-master-plan-build-more-groupons/ericlefkosky-bradkeywell/>
<http://gigaom.com/2011/06/03/groupon-founders%E2%80%99-master-plan-build-more-groupons/ericlefkosky-bradkeywell/>