Remember when those CD-ROMs from AOL came in the mail almost every day? The company was considered ubiquitous, invincible. Former AOL CEO Steve Case was no less a genius than Mark Zuckerberg.

Google is omniscient of what people search for and do. Facebook has over a billion subscribers, meaning Mark Zuckerberg has personal information about one in every seven people on Earth. U.S.A., Brazil, Mexico, India and Indonesia are at the top of that list.

I was in the same class as Mark Zuckerberg at Harvard. So we really experienced Facebook in a unique way. It launched our sophomore year, and we were also the first class where it became a recruiting tool.

Amazon's Jeff Bezos, Facebook's Mark Zuckerberg, Bill Gates, and Steve Jobs did not start out wealthy, and actually added to income inequality, but we all benefit from their creative effort.

Mark Zuckerberg talks about telepathy, and Elon Musk has invested in trying to create a brain-machine interface.

Mark Zuckerberg has never really had pressure put on him. He's an engineer, and he's created this perfect system that is Facebook, and he's always been concerned about the internal beauty and logic of this creation that he's created. I don't think that the human implications of what he's created have often been apparent to him.

Mark Zuckerberg has started an advocacy group for immigration reform.

The paradox is that Mark Zuckerberg, Steve Jobs, and all the tech giants are bigger fans of music than some of the executives working at major record companies.

I wasn't supposed to be walking with Mark Zuckerberg. I wasn't supposed to be interviewing Romney's sons. Why was I doing it? Because I wanted to survive. I wanted to live. I wanted to earn what it means to be an American.

In 2007, Zuckerberg announced that Facebook would become a 'platform,' meaning that outside developers could start creating applications that would run inside the site. It worked.