Tumblr is a really interesting case, since their page views grow exponentially (since everything gets reblogged on Tumblr). Consider: a post gets reblogged by

Tumblr is a really interesting case, since their page views grow exponentially (since everything gets reblogged on Tumblr). Consider: a post gets reblogged by a users and seen by their b followers, who reblog to their c followers etc. Thus, the average post has: a + b^a + c^b + ... total views. Set a += 1. Then b += b, c += c * b ... How many new page views will Tumblr get? Hundreds? Thousands? What happens once Tumblr decides to advertise, even with AdSense? What if they use these $85m to build a data team and target ads? Because that's what they're doing with part of the money. [0] I'm not a fan of funding companies solely on potential, but Tumblr could be big. [0] http://tumblr.theresumator.com/apply/Ro2TZk/Data-Engineering-Lead.html?source=Tumblr+Jobs+Page http://tumblr.theresumator.com/apply/Ro2TZk/Data-Engineering...