<http://schema.org/image>
<http://rack.0.mshcdn.com/media/ZgkyMDEyLzEyLzA0Lzg3L3NvY2lhbG1lZGlhLmRNVi5qcGcKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/2f0810b7/602/social-media-grammar-the-checkin-conundrum-a8f431850c.jpg>
<http://mashable.com/2010/09/03/social-media-grammar-checkin/>