More Google weirdness - Google results in flux again?

I was just skimming a couple articles after noticing two sites that I had reported to google as having WRONG cache information had disappeared. It looks as though there is a certain amount of flux going on in the Google results (more than I would expect just a usual churn.) For instance, this site has 70 pages available from one datacenter and over 1000 pages if I search at another datacenter.

What's more, a site that had long vanished from the results (non-existent in a site: search) northcarolinagenealogy.net has 2 pages in one datacenter and over a hundred in another. This seems to match up with the observations I've seen a few other people make. Some sites they say have vanished down to 2 pages at one datacenter, some have dropped entirely. There's some speculation that another algorithm adjustment is in progress.

Personally, Google has been unstable in it's results since the beginning of March when most searches seemed to be switching over to the Big Daddy architecture.... Interesting to see if things are settling down now.....