It took Facebook less than a decade to accumulate over 1 billion users.
Facebook , the world's largest social playground with over a billion participants and growing, celebrates its 9th birthday today. It was on February 4, 2004 that Mark Zuckerberg and his partners launched "Thefacebook," the original name of the Harvard-only service before Zuckerberg droped the "The" from the title at the recommendation of Justin Timberlake Sean Parker, or at least that's how it was portrayed in the docu-drama The Social Network.
Zuckerberg struck gold with Facebook long before it made him a billionaire. In fact, Facebook was pretty much always a success, with more than half of Harvard's undergraduates signing up for the site during the first month. It's been growing ever since, first by expanding to other colleges in the area, and eventually opening its doors to the general public.
Not all has been smooth sailing on the business side. Just over a year ago, Facebook filed its long awaited IPO at $38 per share, which turned out to be overly optimistic. By September 2012, the share price had fallen below $20. Today it trades at just under $29 per share, giving Facebook a market capitalization of $62.31 billion.