Available Data Shows Facebook User Numbers Growing Quickly, or Slowly, or Falling

Did Facebook have fewer monthly active users in the United States at the start of June than it did at the start of May? What about user counts in other early-adopter countries like Canada and the United Kingdom? Is the company continuing to gain as many new users around the world now as it has in recent years? Facebook appears to have had fewer monthly active users at the start of June than at the start of May in the US and a few other countries — at least according to one data source — even as it has grown bigger than ever worldwide. Although today a source close to the company tells us that the site is “still growing in the US.”