<http://schema.org/image>
<http://rack.2.mshcdn.com/media/ZgkyMDEzLzAyLzA1L2UxL2Jvb2tzdGFjay5hMTM4MC5qcGcKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/4b3ce5d2/a18/bookstack.jpg>
<http://mashable.com/2013/02/05/amazon-love/>