<http://schema.org/image>
<http://rack.3.mshcdn.com/media/ZgkyMDEyLzEyLzA0LzE4L3doeWRhaWx5ZGVhLmNtVy5qcGcKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/881c3ded/af7/why-daily-deal-sites-are-here-to-stay-opinion--78b8c3b5a6.jpg>
<http://mashable.com/2011/07/05/daily-deals-sustainable/>