As we all know, Google AdSense has been a cash cow for many website and blog publishers since 2003. But since November 18 last year, there have been a number of reports that Adsense revenue have dropped for these publishers. Many reasons were given as to why the Adsense earnings were dropping.
At Joel Comm's Internet Marketing Tips site, one viewer had posed the question: "Why did my AdSense revenue drop in half starting November 18,
2007? And what can I do about it?"
According to Joel (Yes, he's the guy who wrote best selling book "The Adsense Code") he's got this theory on the drop, and also he has some encouraging answers to allay the fear of publishers regarding Adsense.