<http://schema.org/url>
<http://thenextweb.com/google/2013/03/22/starting-april-23-google-will-allow-trademarks-as-keywords-in-adwords-worldwide/>
<http://thenextweb.com/google/2013/03/22/starting-april-23-google-will-allow-trademarks-as-keywords-in-adwords-worldwide/>