Facebook - valuing the billboards on your digital pathways - broadstuff
And the next 800m users will not be as wealthy as the last 800m, and after that there aren’t many left to find - so additional revenue is not going to come from a pure volume increase, but from a value per user increase. So you have to believe that there will be more money from our mobile usage, more user activities to keep you on the site, more games played, more billboards, and - The Ultimate Goal - that the billboards will be far more targeted than anything that has come before so advertisers will pay far more per view than today.
And to do that you have to intrude on privacy far more than anything has done before.