Forrester research has released new information in a recent report hammering home the inevitable future of online advertising. The report highlights in particular the enormous growth of Pay-Per-Click (PPC) and Search Engine Optimisation (SEO) which has doubled within the past 5 years. For instance, by 2014, digital marketing will become a $55 billion industry in the US. Although PPC is considered to be the most prominent out of the two digital marketing techniques, SEO has seen a mas