<http://schema.org/image>
<http://rack.3.mshcdn.com/media/ZgkyMDE0LzA4LzAxL2IyL3Jzel81ODA3Mzc4LmZlMDFlLmpwZwpwCXRodW1iCTEyMDB4NjI3IwplCWpwZw/75dbc4e5/633/rsz_5807378709_8045f1d124_o.jpg>
<http://mashable.com/2014/08/01/events-analytics-social-media/>