<http://schema.org/image>
<http://rack.2.mshcdn.com/media/ZgkyMDEyLzEyLzA0LzRiL3RoZXRyb3VibGV3LmJ2eS5qcGcKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/e722e4a5/e5f/the-trouble-with-check-ins-comic--e47856e5fb.jpg>
<http://mashable.com/2010/01/29/checkin-comic/>