My site is about 6 years old with plenty of good original content etc…
I had my site removed from Google on or around Feb. 5, 2005
It then showed up again on or around Sept 22 2005
It then disappeared on Nov. 7, 2005.
I’m not certain as to what I did to get back in or to get taken back out.
A few weeks before being put back in (sept 22 2005) I added a php script that would allow people to post comments about a page. This php script was linked to on a number of pages on my site. It would insert the some parameters into the page like: PAGE_TITLE, and its own URL. Then when the user added the comments to the page the script would re-direct them back to the original URL. I’m now thinking that Google didn’t like this?
I also noticed that the number of links to my site went up drastically over the past few weeks. Last I looked there where some 13000 or so links. Before it only had about 6000 to 7000. I have been getting many refering sites like “cars.long-list-of-words.com”
“hotels.long-list-of-words.com”, “viagra.long-list-of-words.com” as well as other links on known hacker sites that I would rather not mention.
The increased incoming links is exactly the same thing I noticed before I was removed some 7 months ago.