This likely means that a higher percentage of the social networking site’s active users are logging on every day.
Facebook has publicly said that it has more than 750 million active users. But interestingly, the company has also revealed in the past that 50% of its active users log on to Facebook in any given day. While Facebook probably doesn’t have 1 billion active users right now, it’s more likely that more of the site’s users are logging on to the social network daily. TechCrunch