Introduction
The first dollar spent on pay-per-click (PPC) advertising occurred in 1998. The medium had just been invented, and like all new projects, no one knew if PPC advertising would succeed or fail.
Looking back on those early years, it is now obvious that early-adopter advertisers enjoyed this medium. The returns were fantastic, and advertisers kept pouring money into PPC campaigns.
By 2009, barely a decade after the first dollar was spent, it is estimated that more than $15 billion has been spent on PPC. Not only did the industry succeed, it far exceeded anyone’s expectations, and it shows no signs of slowing down. Forrester Research estimates that more than $31 billion will be spent on PPC in 2014. In the same article, Forrester goes ...
