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When I look at my stats it looks as if everything fell on the 16th, but all that actually happened was that on the 16th everything went back to how it had been prior to the 6th.
What makes the figures look strange is the out-of-the-blue, and unaccounted for, good run that I had for 10 days. If Google was testing interest based ads for 10 days, and that was the result, I can't wait for them to switch it back on again.
Of course, AdSense is completely random. Some days clickers arrive and sometimes they don't. Some ads pay well but others don't.
It might just have been pure coincidence that for those 10 days lots of clickers arrived who subsequently clicked on lots of high paying ads.
However, for everything to have been so consistent for a fixed period of time, and then for everything to revert to how it was before, seems to be too much of a coincidence.
I have interest based ads activated.
There are so many factors involved in AdSense EPC, CTR, eCPM, and earnings that anecdotal evidence probably doesn't have much--if any--universal applicability.
I suspect its the interest based adverts.
I get high traffic, but usually low ecpm, I imagine with the adverts now following the browser, that the adverts average ecpm has increased. CTR has remain pretty constant, its like the quality of my adverts has increased.
I keep waiting for it to go down to 'normal' but it seems to be stuck at a new level.
by approximately 30%
Yep, the last two days have been my worst week days of the year...utterly abysmal, there is something seriously fubard and today's is even worse, down by 50% so far.
AdSense is seriously close to being removed altogether, earnings are now 25% of 2006 and declining every day...pointless for me.
Perhaps it is interest-based ads, and perhaps Google are tesing at the moment - turning it on and off for various accounts?
During that time, both my eCPM and CTR were significantly higher than usual. It will be interesting to see if your earnings remain at the new high level, or whether they revert.