Facebook by the Numbers

35 million: Number of unique visitors to Facebook in December 2007

6: Facebook’s ranking on a list of the country’s most-trafficked Web sites

700: Estimated number of employees Facebook will have by the end of this year

70,000: Number of Facebook members who joined a protest group in Nov. ’07 against Beacon, an advertising system that broadcasts users’ purchases or activities on some 40 partner sites to their Facebook friends

$240 million: Amount Microsoft paid in October ’07 for a 1.6% stake in Facebook

$15 billion: Current estimate of Facebook’s value

$150 million: Facebook’s expected revenue this year

24: Age of Facebook CEO Mark Zuckerberg

36: Page of this issue where you’ll find a feature story on Facebook