Did Google Change Clicks Definition Again
It changes constantly. I just looked at their blurb again for Invalid Click Protection.
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It has changed again since I last looked and I can't find the previous version. There was some stuff previously about invalidating clicks that didn't perform. I don't know how they are supposed to know which clicks will 'perform' and which ones won't.
This sounded wrong to me and came at a time when lots of my clicks were being (unfairly) invalidated. The wording has changed now and they talk about 'suspicious' clicks.
So, a click is not a click. After someone clicks, the click goes through lots of Google's algos and filters before they make a payment. Is it fraudulent?, is it suspicious?, will or won't it perform?, etc, etc.
I'm actually doing OK again on the roller coaster we call AdSense. Last year, my earnings rose very nicely from March to December. Then, inexplicably, I saw huge drops from January to April 2012. Earnings started to go up again in May. The upward trend went into June and is now continuing into July.
Anyone doing this for their main source of income must be insane.