<http://schema.org/image>
<http://rack.1.mshcdn.com/media/ZgkyMDEyLzEyLzA0LzUzL3N1bW1pemVnZXRzLmRDWi5wbmcKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/c084e217/24c/summize-gets-distribution-deal-with-huffpo-twitter-s-path-to-mainstream--a3aa8a608b.jpg>
<http://mashable.com/2008/05/20/summize-huffington-post/>