netmeg, most of the traffic is search related from the US. So it doesn't make sense to me.
As well, yesterday was a very weird occurance. At around 7pm Pacific time, it said I earned XX.XX. Four hours later, I checked it again, it said XA.XX (less than four hours before). Today, total earnings from yesterday is *exactly* XX.XX from 7pm the day before.
Could be a coincidence, but that's incredibly odd to me. And now that I think about it, the same thing has happened before. As if it's a display issue and Google already knows how much it's going to pay out at the end of the day.