<http://schema.org/url>
<http://www.businessweek.com/articles/2013-10-31/does-that-review-of-a-disappointing-burger-make-you-a-yelp-employee>
<http://www.bloomberg.com/bw/articles/2013-10-31/does-that-review-of-a-disappointing-burger-make-you-a-yelp-employee>