<http://schema.org/url>
<http://thenextweb.com/socialmedia/2010/11/08/six-tips-on-how-to-keep-it-fresh-in-social-media/>
<http://thenextweb.com/socialmedia/2010/11/08/six-tips-on-how-to-keep-it-fresh-in-social-media/>