Google de-listed almost all my sites

[tbach2k]

I had the wierdest thing happen to me on aug31 i think it was.
Maybe the 30th.
Anyways it was monday i beleive.
I woke up to find 99.9% of all domains i own were de-listed from google.
No sign of them at all in the engine.
Some of them had pagerank of 5,6,7..
I am at a lost at what happend and i certainly dont want a re-peat of this.
All the pagerank's went to zero that day.
Most of them were linked to my main site http://www.seespotfetch.com .
This domain i had in google since the beginning of this year mostly.
It fluctuated from 0-5 in pagerank .
Mostly it stayed at 3 though.
I am at a lost what in the world could have happened one of my domains had 20,000 pages indexed the day before the incident.
I have read of course all the explanations of de-listing on the google help page and non of them i think could apply to me.
So i am at a loss.
I am wondering if anyone else had any strange happenings near this date.
Of course google hasnt replied so i dont know what to do.

[alfoss]

I just caught this as well with one of my top ranking links as of Wednesday. In fact, I has left that page alone for over 5 months due to the good ranking that I was getting. I guess it will have to change today.

Luckily, It still is in the top 3 with Yahoo. Maybe the split is a good thing!