<http://schema.org/image>
<http://rack.2.mshcdn.com/media/ZgkyMDE0LzA2LzAyLzUzL0FwcGxlX1dXREM0LjJiODA0LmpwZwpwCXRodW1iCTEyMDB4NjI3IwplCWpwZw/3a87ca00/17e/Apple_WWDC-4.jpg>
<http://mashable.com/2014/06/02/apple-wwdc-stats/>