helpnow - 10:35 pm on Dec 10, 2009 (gmt 0)

Does "mid-September" mean anything to anyone? I see about 40% +/- of my pages have cache dates of around September 14/15/16. (I have tens of thousands of pages, so it is hard to nail down specifically...) Meanwhile, I have many pages which get updated within hours, and lots more pages which are on a 7-10 day cycle to get updated in the SERPs.

But I am curious to see if anyone else finds the mid-September timeframe significant.

Oh, I see above someone spoke of pages been taken out of the SERPs completely - yes, I've got that too: if I am to trust the WMT sitemaps, then I have about 50% of my pages not in the SERPs. Crazy. I've stumbled over some of these pages, and they are clean - rich content, unique, etc. No reason for them to be removed from the SERPs.

Too many moving parts in this puzzle...