Several blogs and forums are reporting problems at AdSense since last weekend's maintainence.
One publisher states:
Have you seen any reporting problems with your account?On one of my lower-traffic sites, Google's reporting 224 impressions,
7 clicks, and 89 cents in revenue today. But on 3 channels from that
site, I'm reporting 4 clicks for $1.02, 3 for $.51, and 2 for $.31.
So the channels that are reporting clicks are claiming 9 clicks for
$1.84 while Google's claiming 7 for $0.89. For the first time, my ad
channels are reporting higher than a URL channel, and that is worrying