<http://schema.org/image>
<http://rack.2.mshcdn.com/media/ZgkyMDEyLzEyLzA0LzRmL2hvd3RvcmVkdWNlLmJxbi5qcGcKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/3bf3e66c/011/how-to-reduce-the-spam-in-your-inbox-mailbox-and-voicemail-bc711b8b2b.jpg>
<http://mashable.com/2011/10/03/anti-spam-guide/>