<http://schema.org/image>
<http://cdn1.tnwcdn.com/wp-content/blogs.dir/1/files/2012/07/Running1-520x245.jpg>
<http://thenextweb.com/apps/2012/07/25/runkeeper-moves-its-fitness-goals-feature-beyond-the-browser-and-onto-its-native-mobile-apps/>