<http://schema.org/image>
<http://rack.2.mshcdn.com/media/ZgkyMDEyLzEyLzA1L2ZhL2dvb2dsZW9wZW5zLmNnSy5wbmcKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/9696e9f6/c5a/google-opens-print-ads-to-marketers-fa0b6bbd9d.jpg>
<http://mashable.com/2007/07/18/google-print-ads/>