15 top tips for improving your ranking if it has dropped after the Google Panda Update

1. Look for low-quality sites that are linking to your site and ask them politely to take down their links. Try to avoid further negative association!
2. Focus your attention on getting back-links from very high-quality and reputable sites in your niche and register with directories with well-chosen keywords.
3. Don’t do all your link building actives in one hit, the velocity of links gains can be important, too many, too quickly can appear to Google as a link spike.
4. Create lots of useful, entertaining, well written content. If you haven’t got a blog you should start working on that straight away. Blogs are one of the best ways to keep your site fresh and continually updated with new content, but remember don’t keyword stuff or link stuff your posts.
5. Avoid unnatural overuse of a word on a page.
6. Improve the look of your pages add images and videos
7. Spell check everything.
8. If you have been scraping or otherwise copying other site’s content STOP. Replace it with quality original content or remove then and add 301s from them to relevant pages with your with your robots.txt file.
9. Remove any unnecessary advertising.
10. Avoid duplicate content both on site and off site.
11. Try and reduce the bounce rate of your pages, you can do this by linking to highly relevant internal content form your pages from your posts. check Google Analytics regularly and work on pages with the highest bounce rate.
12. Consider blocking badly performing pages from the search engines using your robots.txt file.
13. One of the biggest changes in Panda is that the user experience just got more important. Human quality raters have been around for a while but many expert SEO people believe that these quality reports are having more effect on ranking. Ask yourself does my site look professional, would customers trust my site, is my content written for humans or machines?
14. Social Media sites like Facebook, Twitter, LinkedIn, and others are where much of your audience are living on a daily basis. Continue to build relationships on social networks and give your customers what they want and need.
15. Clean up your on-site content, remove spammy links and keywords, make them look natural
16. Be patient it may take up to three months for any improvement to show in the results.