Google is unindexing my pages

Hi,
For a few weeks, google is unindexing my pages.
I mean, bck in the good old days, when I searc on google like site:mysite.com, i got more than 2000 results, which was fine by me, but lately i discovered, day by day the result decreases about 30-50 by day.
For example, yesterday the result was 1100, today it is 1070, tomorrow it will be less than 1050 i'm afraid.
Is it sandbox, or blackhat, or something i could have done to piss off google.
I didnt make any changes lately on my page.

 

hi yleiko

me too

but i think google now updating PR

my indexed pages was 10764 page

but now it's 4530 page

sometime its increase and smoetime decrease

 

PR update and pages getting de-indexed have nothing in common. It is probably another algorithm change...

 

hi,

were you link farming or anything?

 

If there are not too many pages (10.000 is too much) you can try it with setting deeplinks.

 

Google is becoming insane. Last week Google un-index 200 of my website pages and after that i got higher PR for all. For other website index 50 dynamic URLs and i lost PR or most of other pages. They are doing unscheduled major updates in last 2 months.

 

I had a similar situation back in Feb. I got around 100 pages indexed in a week, then a week later it went down to 20!