<http://schema.org/image>
<http://rack.1.mshcdn.com/media/ZgkyMDEyLzEyLzA0LzIwL25pZWxzZW5jb21pLmdxNi5naWYKcAl0aHVtYgkxMjAweDYyNyMKZQlqcGc/5b43e16f/c55/nielsen-coming-to-your-house-to-measure-pc-videos-too-4db7ac2b38.jpg>
<http://mashable.com/2008/02/12/nielsen-online-tv-panel/>