There is nothing new about advertising. It has likely been in place since the first entrepreneur decided to sell their product. And, while much has changed in the world of commerce, advertising seems to be here to stay. However, the methods have changed greatly with the widespread threads of the Web. And perhaps, one of the most significant changes, is the introduction of PPC (pay-per-click) advertising.
PPC was initially introduced as a proof of concept by Jeffrey Brewer of GoTo.com in 1998; however, it was not until 2002 that the AdWords system was established. The potential of AdWords, as well as other similar programs was a turning point in how business on the Web is done.