<http://schema.org/url>
<http://www.engadget.com/2011/08/05/stanford-schooling-unwashed-masses-with-free-online-intro-to-art/>
<http://www.engadget.com/2011/08/05/stanford-schooling-unwashed-masses-with-free-online-intro-to-art/?ncid=rss_semi>