<http://schema.org/image>
<http://rack.0.mshcdn.com/media/ZgkyMDEyLzEyLzA1L2Q0L2NsZWFyc3ByaW5nLjk1dC5wbmcKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/5bdd44d6/79a/clearspring-partners-with-pointroll-for-ads-on-your-widgets-3b6627aa0e.jpg>
<http://mashable.com/2007/12/09/clearspring-ad-network-pointroll/>