<http://schema.org/image>
<http://rack.3.mshcdn.com/media/ZgkyMDEyLzEyLzA0L2QzLzhzcG9va3lzZXRzLmIwWC5qcGcKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/12943d56/776/8-spooky-sets-of-social-halloween-icons-9f83d7d3df.jpg>
<http://mashable.com/2011/10/25/free-halloween-icons/>