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Facebook, Mark Zuckerberg, CEO, initial public offering, ipo, profits, internet,tech bubble

Facebook, Mark Zuckerberg, CEO, initial public offering, ipo, profits, internet,tech bubble

Facebook, wall street, ipo, initial public offering, privacy, social networks

Facebook, wall street, ipo, initial public offering, privacy, social networks

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Twitter,social network,IPO,initial public offering,stock market,investors,NYSE,economic recovery

Twitter, social network, IPO, initial public offering, stock market, investors, NYSE, economic recovery