I am just curious as I noticed some clicks with payment of 0 today. It is not PSA related as I do not show PSA when no inventory is available. Due to the recent emails people received about not having a suitable business model could the Zero amounts be attributed to former arbitrage site ads?
I also had clicks on the search that were $0. My eCPM was over $6 at the time the $0 showed up and there were no CPM ads on that channel at all yesterday (they were all contextual). Just wondering if is due to MFA sites pulling their ads due to an unfit business model. It was just strange that it has only started happening since yesterday (not happened today yet, but it might).
This things just happen some times there are lots of possible explenations, fake trafic, multiple clicks etc. You just have to wait and it will pass. Dont check your adsense account every hour... your satisfaction will be a lot greater if you check it once every 3 days for example and you get a nice surprise