Edge - 1:37 pm on Sep 11, 2011 (gmt 0)
I spent a few weeks pondering what was wrong with the site
My advice for anyone with a penality, forget trying to fix it and begin to work with Bing.
I am late to this thread; however my perception is that you are probably doing something on your website Google does not agree with.
If I where you, I would hire or whatever a white hat SEO expert, have them analyze your website situation, report to you and then actually listen to what they have to say.
There is the chance that your perception of what is acceptable to Google is very different than what Google find acceptable.
I have running my high-traffic site for twelve years, am very white hat, never had a penalty…