It happened to few of my websites. They were at very good standing showing on 1st or 2nd page for organic search results for major keywords. It happened overnight, as I started checking the rankings, many of them showed no. of visitors had fallen significantly.
Fortunately, these sites were fairly new and I could experiment to make sure they would not get affected further. I read some tips online and found some really good resources.
Most important tip was I got from seo-hacker. Sean Si posted vital information about what to do if your money making, high quality blog was affected by Panda Update. Here is link to Webmaster Central in his post that directs webmasters to inform Google if they think they got an unjust cut.
Some more changes you can make to your blog:
Regular Updates. Keep adding high quality contents to your website. When you are updating your blog regularly, it shows that you are interested in giving useful contents to your visitors. Search Engines like that.
Interlinking Your Posts. Make sure to interlink your posts. It adds authority to your websites. There are many plugins available that you can install and link your pages easily. InSight is one such powerful plugin for WordPress that allows you to quickly access and insert information like links, images, videos, maps etc into your blog posts.
Avoid Duplicate or Spun Contents. Google gives high priority to quality. I am not really sure about the ratio of duplicate content to unique content but it may result in Google seeing a set of pages as duplicate since the Panda update. Lets say, it’s 50% duplicate content to 50% unique content is the tipping point? Your opinions, please?
Backlinks from Quality Websites. Make sure to make genuine comments on other blogs, get backlinks from high quality websites, with high pagerank.
Please share your experience if your site was affected by Panda Update.
Disclaimer: These are the tips I read online and my testing is still in progress.
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