@dickbaker: I own sites that have suffered, and sites that have been untouched. I have a site which survived Panda, but then within 24 hours of making some substantial content changes on March 11, it was hit with a drop in ranking. May be unrelated, may be that it was already on the borderline, and the changes triggered an adjustment on its quality score. Dunno. I know you have posted a lot since Panda hit... forgive me if I ask you something you already posted in another thread. I have learned the most in this period by comparing sites affected to sites unaffected, especially those under my control as I know exactly what has gone into each, both onsite and offsite. Some of this insight flies in the face of much of the speculation abounding, notwithstanding the fact that every site is different, and different sectors may be scored differently. Anyway, dickbaker, forgive me, but I am to curious to know:
- how many pages are there on your site?
- how many pages did you change?
- have you evaluated the amount of duplicate content on your site? And by that I mean, a serious sentence by sentence, "sentence" search in google.com, giving you a page by page score of scraped:non-scraped content ratio. The question is, how much of the content on your site did you scrape, or has been scraped by others? (The origin of the duplicate content is no longer unimportant, like it or not, it is potentially moot who originated the content. The question now is simply, do you have content on your site that exists elsewhere?)
(I am operating under the MO that thin content and ads are a red herring, a secondary signal at best, or a primary signal affecting a different part of the algo, perhaps the initial part. I think this algo change was the mother of all algo changes, with a number of different goals. Fine-tuning this algo change with all its moving parts is reputedly going to be a year-long task for google. I think you are collateral damage (which means recovery is inevitable), and not an intended target, but the question is, why, and in knowing the why, can you help speed your recovery?)
I ask with the best of intentions. Your experience mirrors one of mine. Perhaps we can find common effect in a common cause. My 3 questions may not apply to you, and you may be affected in another way I am unfamiliar with... I am certain this algo change was multi-faceted, and each affected site may be affected for different reasons.