An avalanche of media attention has been focused on the alleged marketing juggernaut of Facebook, Google + and Twitter.
Facebook has 1.5 billion users and a devoted following – the average American user spends 40 minutes daily on the platform. They spend around 20 minutes in the gym.
Google +, not nearly as potent, still has a commanding audience of millions. Twitter signs up 135,000 new users daily and experiences 2.1 billion searches of its content every day.