We had zeroes for a while -- not just for today but for the entire month of July. Now we have page views, but they are about half what they should be at this time of day. Analytics looks normal, so I'm assuming this is just severe lag.
Seems to be a regular thing these days. Think I will just check in twice a day from now on. I tried to check just once a day, but I always failed. Adsense is a bit like playing those Vegas slot machines.