<http://schema.org/image>
<http://static1.squarespace.com/static/5548d696e4b023a9adf9f85e/t/5548d6b7e4b01318c0ac09c9/1475529790581/>
<http://polar.me/blog/blog/2011/10/how-to-sell-integrated-sponsorships-to-monetize-mobile-apps-at-launch>