<http://schema.org/image>
<http://cdn1.tnwcdn.com/wp-content/blogs.dir/1/files/2012/08/Screen-Shot-2012-04-03-at-3.59.jpeg>
<http://thenextweb.com/apps/2012/08/17/the-dropbox-web-interface-now-updates-instantly-file-changes/>