<http://schema.org/image>
<http://cdn1.tnwcdn.com/wp-content/blogs.dir/1/files/2012/11/97482_2363-520x245.jpg>
<http://thenextweb.com/google/2012/11/27/gmail-now-lets-you-insert-up-to-10gb-of-google-drive-files-directly-into-an-email/>