<http://schema.org/image>
<http://rack.3.mshcdn.com/media/ZgkyMDEzLzAyLzE5L2UzL0FwcHNJbWFnZTYwLmI3MjZmLmpwZwpwCXRodW1iCTEyMDB4NjI3IwplCWpwZw/f1078a3b/c0c/Apps-Image-600.jpg>
<http://mashable.com/2012/04/11/mobile-app-design-tips/>