Imagine, just a few short years ago as I was writing the first edition of New Rules in 2005 and 2006, Facebook was only for students and MySpace had four times as many users as Facebook. Now MySpace has only 32 million users to Facebook’s 1.1 billion.
Twitter didn't even exist as I was writing the first edition, nor did most social networks we use today including Instagram, Google Plus, Foursquare, and SlideShare.
How amazing that in just a few years, inbound marketing and social networking has become mainstream! We are truly living through a communications revolution.