The History of Google AdSense

Google AdSense has its roots in the old “Google Content-Targeted Advertising” program which they introduced back in March of 2003. Although this program was similar in concept to AdSense, there was no automated way of participating. Each webmaster negotiated a deal directly with Google, and websites that served less than 20 million page views per month were not welcome to participate. 

As Google grew, they began to see how much money they were leaving on the table by excluding the smaller sites, which greatly outnumbered the sites serving over 20 million hits that were willing to serve other people’s ads. Their answer to that problem was AdSense which has no minimum traffic requirements and is open to all sites meeting Google’s content and decency requirements.