It's going to be a big week for Facebook. While the upcoming movie The Social Network may not portray founder Mark Zuckerberg in the best light, there's no way that usage of the site is going to slow down any time soon. This week, Facebook is going to hit another big milestone regarding its amount of registered users. Can you guess how many there are?

Hint: a little over a year ago, there were 250 million registered users on the site.

Guess the Facebook Milestone!

How many registered users are now on Facebook?

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