Google.com was registered on September 15, 1997, only 20 years ago. It’s hard to believe since we can’t remember life before online search. Google has continuously evolved to organize and aggregate online information to present the “best possible truth” to its users.
This gave rise to the term “on-page optimization”. Marketers created ways to trick the system by employing techniques like keyword stuffing, or hidden text (e.g., white text on white backgrounds) as a way to improve their search ranking. As a result, Google evolved.
This was a significant improvement, but also gave rise to new marketing tactics such as article marketing, link farms (setting up multiple websites only for the purpose of creating inbound links to other sites) and blog networks.