<http://schema.org/image>
<http://rack.1.mshcdn.com/media/ZgkyMDEyLzEyLzA0L2RkL3R3aXR0ZXJwaG90LmFNdS5qcGcKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/2bd73ad7/19a/twitter-photo-uploads-now-available-to-app-makers-c1dd2b38d4.jpg>
<http://mashable.com/2011/08/16/twitter-photo-upload-api/>