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Hi, I am seeing strange behavior of Google for my rankings. I have a very competitive keyword (I can't disclose because of NDA) but for example keyword like "Cameras" on google.co.uk , it stayed on #4 spot for years, we have been practising all good SEO techniques for this. From last couple of weeks, it goes to 9 then stays there for 2 days, then come back to 4 for 2 days, then go back to 9 & then after 2 days come back to 4 & it is keep moving like that... at the time of this post, this one is on 9. Our site have been on top for very competitive kws even like word "Camera" we are 2 which is stable... None of our other kws ranks are changed but only word "Cameras" is affected. I am not sure how & why this is happening, I have been following SEOMoz from long time & hope can find solution here. Note : Keywords used here are not actual, but carry equal importance Please let me know.