<http://schema.org/thumbnailUrl>
<http://i2.wp.com/www.powerlineblog.com/ed-assets/2011/09/Schwartz.jpg?resize=110%2C85>
<http://www.powerlineblog.com/archives/2011/09/another-smoldering-stogie-of-misinformation-from-the-lung-association.php>