So Facebook makes less than $3.7 per user per quarter or some $15 per user per year.<p>Don&#x27;t anyone find it amazing how little money they make per user (and still have a good business)?<p>The article doesn&#x27;t say how much time the users spend on FB, but they say that users spend 100 million hours monthly on watching videos. If we assume that&#x27;s 50% of the time spent on FB, users spend 200 million *365 = 73 billion hours yearly on FB or in average a little less than 50 hours per user. For $15.<p>So roughly speaking, Facebook makes $1 for every 3 hours a user spends.