<http://schema.org/url>
<http://www.businessweek.com/articles/2014-02-03/only-musics-graybeards-can-afford-not-selling-out-to-advertisers>
<http://www.bloomberg.com/bw/articles/2014-02-03/only-musics-graybeards-can-afford-not-selling-out-to-advertisers>