<http://schema.org/image>
<http://rack.1.mshcdn.com/media/ZgkyMDEyLzEyLzA0L2RkL3doeXNvY2lhbG1lLmNjRi5qcGcKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/4b3e5bad/315/why-social-media-is-perfect-for-brand-ambassador-campaigns-649e4c7f3b.jpg>
<http://mashable.com/2010/10/25/brand-ambassador-campaigns/>