<http://schema.org/image>
<http://rack.3.mshcdn.com/media/ZgkyMDEyLzEyLzA0LzdkL3R3aXR0ZXJhZG5lLmNDNi5qcGcKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/b7da5fe9/fbf/twitter-ad-network-tweetup-acquires-popurls-and-twidroid-26d3b2441a.jpg>
<http://mashable.com/2010/07/06/tweetup-acquires-twidroid-popurls/>