<http://schema.org/image>
<http://rack.1.mshcdn.com/media/ZgkyMDEzLzA5LzI2Lzg2L1R3aXR0ZXJTdG9jLmU5MGIwLmpwZwpwCXRodW1iCTEyMDB4NjI3IwplCWpwZw/2e98bcab/37e/Twitter-Stock-10.jpg>
<http://mashable.com/2013/09/26/bots-and-spam-twitter-ipo/>