<http://schema.org/thumbnailUrl>
<https://www.imore.com/sites/imore.com/files/styles/thumbnail/public/field/image/2012/07/Newsstand-vs-Next-Issue-vs-Zinio-iPad-magazine-subscription-app-shootout.jpg?itok=wthfduob>
<http://www.imore.com/comment/305136>