That reaches the figure of about one trillion.
Coming to the stats, Google’s DoubleClick Ad Planner states that Facebook has got more than 870 million unique users. These figures certainly make it the leading web portals when it comes to broad reach of Internet users.
The YouTube service by Google is ranked second while having 790 million unique users and100 billion page views.
The Google Ad Planner services does not measure portals such as Google Search but measure only web portals by their domains rather than the company on the whole.