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Users of social networking site Facebook finally broke the half a billion on Wednesday when the United States. This figure is achieved in just six years and is expected to continue to increase until one billion within a year.

500 million means that one in seven people on this earth use Facebook. Creator of Facebook, Mark Zuckerberg, said never thought of public enthusiasm was so high when the launch Facebook six years ago. “We have big dreams,” said Randi Zuckerberg, Mark Zuckerberg’s sister who handles marketing. “We will take a day or more to celebrate.”

In the summer of Facebook users reached 250 million. After February, the users have grown 100 million people. If Facebook were a country, its population became the third largest in the world.