<http://schema.org/thumbnailUrl>
<http://www.imore.com/sites/imore.com/files/styles/thumbnail/public/field/image/2013/03/imore_forums_2013_0.jpg?itok=CiUYgn7D>
<http://www.imore.com/forums-apple-maps-vs-google-maps-iphone-5s-jailbreaking-ios-vs-android>