<http://schema.org/url>
<http://www.businessweek.com/articles/2013-12-12/if-canada-and-sweden-and-germany-can-fix-mail-delivery-why-cant-the-u-dot-s-dot>
<http://www.bloomberg.com/bw/articles/2013-12-12/if-canada-and-sweden-and-germany-can-fix-mail-delivery-why-cant-the-u-dot-s-dot>