Sally_Stitts - 1:46 am on Sep 1, 2011 (gmt 0)

I have observed this for years.
Here is an invented, but representative example.

Visit stats -
Page x got one click for $10.
Return later in the day -
Page x now has 4 clicks, earnings now = $13.
(Every page has its own channel, and one ad block.

I see this over and over and over again on various pages.
So, why? I don't get it.
Is it a technique to get us hyped-up? By the advertiser? By Google?
Since Google always pays 68% to the publisher, it would not seem to be them.
Is it the advertiser who is manipulating things? Somebody is.

Does anyone have any idea?
.