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LONDON - JULY 10: In this photo illustration a girl browses the social networking site Facebook on July 10, 2007 in London, England. Facebook has been rapidly catching up on MySpace as the premier social networking website and as of July 2007 was the secondmost visited such site on the World Wide Web. Started by 22 year old Harvard dropout Mark Zuckerberg, the website is responsible for 1% of all internet traffic and is the sixth most visited site in the USA. (Photo Illustration by Chris Jackson/Getty Images)

LONDON - JULY 10:  In this photo illustration a girl browses the social networking site Facebook on July 10, 2007 in London, England. Facebook has been rapidly catching up on MySpace as the premier social networking website and as of July 2007 was the secondmost visited such site on the World Wide Web. Started by 22 year old Harvard dropout Mark Zuckerberg, the website is responsible for 1% of all internet traffic and is the sixth most visited site in the USA.  (Photo Illustration by Chris Jackson/Getty Images)

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A portrait of Facebook found Mark Zuckerberg is seen on an iPhone in this photo illustration on 28 August, 2017. (Photo by Jaap Arriens/NurPhoto via Getty Images)

A portrait of Facebook found Mark Zuckerberg is seen on an iPhone in this photo illustration on 28 August, 2017. (Photo by Jaap Arriens/NurPhoto via Getty Images)

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Mark Zuckerberg, chief executive officer of Facebook Inc., listens as Narendra Modi, India's prime minister, not pictured, speaks during a town hall meeting at Facebook headquarters in Menlo Park, California, U.S., on Sunday, Sept. 27, 2015. Prime Minister Modi plans on connecting 600,000 villages across India using fiber optic cable as part of his "dream" to expand the world's largest democracy's economy to $20 trillion. Photographer: David Paul Morris/Bloomberg via Getty Images

Mark Zuckerberg, chief executive officer of Facebook Inc., listens as Narendra Modi, India's prime minister, not pictured, speaks during a town hall meeting at Facebook headquarters in Menlo Park, California, U.S., on Sunday, Sept. 27, 2015. Prime Minister Modi plans on connecting 600,000 villages across India using fiber optic cable as part of his "dream" to expand the world's largest democracy's economy to $20 trillion. Photographer: David Paul Morris/Bloomberg via Getty Images

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Mark Zuckerberg, chief executive officer and founder of Facebook Inc., speaks during an event at the company's headquarters in Menlo Park, California, U.S., on Thursday, March 7, 2013. Zuckerberg discussed the social-network site's upgraded News Feed which includes bigger photos, information sorted into topics and a more consistent design across devices. Photographer: David Paul Morris/Bloomberg via Getty Images

Mark Zuckerberg, chief executive officer and founder of Facebook Inc., speaks during an event at the company's headquarters in Menlo Park, California, U.S., on Thursday, March 7, 2013. Zuckerberg discussed the social-network  site's upgraded News Feed which includes bigger photos, information sorted into topics and a more consistent design across devices. Photographer: David Paul Morris/Bloomberg via Getty Images

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Mark Zuckerberg, chief executive officer and founder of Facebook Inc., reacts during a session at the Techonomy 2016 conference in Half Moon Bay, California, U.S., on Thursday, Nov. 10, 2016. The annual conference, which brings together leaders in the technology industry, focuses on the centrality of technology to business and social progress and the urgency of embracing the rapid pace of change brought by technology. Photographer: David Paul Morris/Bloomberg via Getty Images

Mark Zuckerberg, chief executive officer and founder of Facebook Inc., reacts during a session at the Techonomy 2016 conference in Half Moon Bay, California, U.S., on Thursday, Nov. 10, 2016. The annual conference, which brings together leaders in the technology industry, focuses on the centrality of technology to business and social progress and the urgency of embracing the rapid pace of change brought by technology. Photographer: David Paul Morris/Bloomberg via Getty Images