<http://schema.org/image>
<http://rack.3.mshcdn.com/media/ZgkyMDEzLzA1LzEyL2FjL3R3b3dheWNvbnZlLmZhNDQ5LmpwZwpwCXRodW1iCTEyMDB4NjI3IwplCWpwZw/9e9c6df6/254/two-way-conversation.jpg>
<http://mashable.com/2013/05/12/two-way-conversation/>