<http://schema.org/image>
<http://rack.3.mshcdn.com/media/ZgkyMDEyLzEyLzA0L2U1L25ld3dlYmFwcG1hLmJOYS5qcGcKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/6b299cf8/173/new-web-app-makes-sharing-code-comments-a-snap-ca9b82c65b.jpg>
<http://mashable.com/2011/05/19/chopapp/>