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Check for keywords that is appearing how many times.If it is more.Then delete or modify those keywords.Keyword stuffing always giving you problems.

Google will do that... happened to me before

You need to continuously build backlinks day in, day out non stop.

Thats a proven way to achieve success

Yury

You are concentrating too much on the onpage SEO. I highly recommend concentrating on high quality backlinks to improve your search engine positioning.

Cheers,
Dave

So did mine-my refrigerator review site was ranking #6 at one point for its main KW, 30,000 local searches, and between 5 and 30 for another 9 popular ones.

It was nearly completely wiped off the face of google since last week.

What happened? I got sick of paying for more links and links, I got sick of building more links and links. So I stopped building more links.

Google decided to slap it, even though my content is all original and decent. But its just too much upkeep.

Main sites that are getting hurt from Panda update are sites ranking for high profile KW that google feels are unworthy.

Its an update that encourages farming, not discourages it. Cause if its too hard too stay ranked for big KW's, then people are going to produce massive amounts of pages. Only two ways to drive decent traffic. I myself am steered towards this latter option.

Perhaps your content are less quality and you fail to acquire quality backlinks.

Build some quality backlinks it will bring back your keywords

Same prb here ....

dont worry about the ranking,just keep on focusing on the quality back links,soon your site will regain its position...

Dont worry about ranking build quality links constantly you will get good position after couple of weeks. Try to update quality and genuine content on site.