Probably an invalid click. Especially considering record high CTR.

Also, always keep in mind that impressions, clicks and money don't update at the same time during the day.

It is also common that the exchange rate in US$ for a foreign click makes it less than $0.01, the lowest earning possible.

Well, at least you have not been charged for that click!

I hear music. Wait, I know that tune.

Always look on the bright side of life, da-daa-dadada-daah...

;-)

I think the data and revenue calculation is delayed in Adsense, and there is something going in the background that we do not know about, I think. I have noticed a few times that for example my daily earnings is a dollar or so and then suddenly I have +10 in my account for the whole week, or +5 for the whole week, simply said, the math often does not add up as one would expect.
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[edited by: engine at 4:46 pm (utc) on Oct. 1, 2008]
[edit reason] No urls [/edit]

Does nobody else get CPM ads? For those guys you get paid per thousand impressions (or part of) but not for any clicks. Might have been one of those?

It may be due to Invalid click. Anyways there may be several reasons for that.

Looking at my channels I get the impression that CPM ads have pretty well died out, at lease in my sector.

I do remember that the second click that I ever got on Adsence paid zero, I spent ages wondering about it until I read up on CPM.

Maybe targeted CPM ads? Do you also get money for no clicks at all?

wish there'd be a problem of delay.

After observing a $0 click, the revenue for full day was the highest since i joined adsense.

today i got another funny figure.
Not $0 per click but 0.038 per click........................
Maybe another delay.....