<http://schema.org/url>
<http://thenextweb.com/twitter/2012/07/19/twitter-lets-brands-send-promoted-tweets-to-select-regions-and-devices-only-for-better-targeting/>
<http://thenextweb.com/twitter/2012/07/19/twitter-lets-brands-send-promoted-tweets-to-select-regions-and-devices-only-for-better-targeting/>