Several website owners are reportedly seeing their Google Adsense income declining in the past months. A discussion over at WebmasterWorld got webmasters talking about the phenomenon and what supposedly is causing it.
We are also seeing that decreasing trend here in the site, albeit not consistently from month to month. Our monthly average income now is just barely half of what we earn last year.
In December, income dropped by 30% from the previous month. We don’t know what triggered this but we’re thinking the shrinking of clickable areas in Adsense ads and the PageRank penalty slapped on the site might be the culprit.
Fortunately, Adsense earnings reverted to its normal level in January 2008 but in February, income is back again in the same level as December 2007. Daily earnings during the first days of March this year are increasing but still nowhere close to the pre-December figures.
Why are Adsense earnings on a decline?