LavingRunatic - 4:06 pm on Dec 29, 2012 (gmt 0)
Thanks guys. I think netmeg may be right. I have a Q&A site and some of the ads that come up are for a very well known Q&A site. Some users may click on those by accident thinking that they are submitting to my own site. Perhaps Google is refunding money for those clicks? The only thing is that I would expect that if this was the case then my pages that encourage people to ask questions would be the ones where earnings are clawed back. But it seems like it is the opposite...the earnings disappear on article pages.
Advertisers budget is $25, so once their budget is used up for the day, their ad's stop running, and cheaper advertisers take their spots.
If this was what was happening though I would think I would just stop getting clicks throughout the day. But what is happening is that I get a click for say $1.25 on a bunch of different articles. My total at some point early in the morning may be $19.00 Then when I log in later in the day it says those articles have no clicks and my total for the day is something like $4.00 with a bunch of <10 cent clicks.
It's probably that Google has detected something they think is click fraud, but it's darn annoying. I guess there's nothing I can do about it.