sahm - 5:00 am on Jun 7, 2008 (gmt 0)

My site:

- is a large, authority niche site
- main page PR 5 - PR has not increased or decreased in years
- is hosted in the U.S.
- has many incoming and outgoing links
- contains original and reprinted articles; no product pages
- is updated several times a week with new content
- is linked to from many of the smaller sites ranking above mine

My competitors seem not to be affected as far as I can tell. The top 10 sites for my main search term are same as usual except mine is missing.

There is no rhyme or reason to the positions of my pages that are still ranking in the index. Each term is ranked at a different position - my main term is currently ranked at #15.