Google has several Databases that circulate throughout the globe. Currently there is one Database that is using listings cached snapshots that are Three months old. I can tell by the sudden changes in my title and description the way there were three months ago. Then suddenly a few hours later the new databases "kick in"
I have a homepage that is spidered nearly every day, and then, out of the blue on August 4th, the cache showed a page that was around 4 months old. It only stayed that way for 1-2 days, and then I had a fresh copy on August 6th.
Once again I'm back to the 4 month old copy fresh--4 month---fresh--4 month I've got the devil on my left and an angel on my right! Anybody have a good explanation? Are they saving bandwith while they play Unreal Tournament?