<http://schema.org/image>
<http://rack.2.mshcdn.com/media/ZgkyMDEyLzEyLzA0L2MwL3Byb2plY3RyZXR3LmNFcS5qcGcKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/95f11d5a/912/project-retweet-the-end-of-rts-as-we-know-them--a698b60964.jpg>
<http://mashable.com/2009/08/13/project-retweet-analysis/>