<http://schema.org/thumbnailUrl>
<http://www.imore.com/sites/imore.com/files/styles/thumbnail/public/field/image/2012/11/instagram_web_profiles_hero.jpg?itok=ObHcpdjK>
<http://www.imore.com/instagram-cuts-support-twitter-cards-wants-you-go-their-website-instead>