<http://schema.org/image>
<http://cdn1.tnwcdn.com/wp-content/blogs.dir/1/files/2011/12/315671189_aaedfb6fd9_o-520x245.jpg>
<http://thenextweb.com/apps/2011/12/07/free-time-will-completely-change-the-way-you-look-at-your-calendar/photo-2-103/>