&gt; within the last 30 days they had their first 1B active user day<p>I don&#x27;t put too much stock in these types of numbers that companies release themselves. Facebook has long had issues with fake accounts created by bots, and has shown little interest in curbing that practice (since it inflates their numbers.)<p>Even if I accept the number at face value, I think that reflects mainly Facebook getting some penetration into other countries outside of the US. In the US it has already begun to decline, and while the Facebook &quot;wave&quot; may be at different points in other regions of the world, it is unlikely it will hold on for 10 years in those other countries given the increased relevance of other forms of social networking.