<http://schema.org/url>
<http://thenextweb.com/google/2012/04/03/google-adds-real-time-service-alerts-for-the-london-underground-to-google-maps/>
<http://thenextweb.com/google/2012/04/03/google-adds-real-time-service-alerts-for-the-london-underground-to-google-maps/>