The first thing I recommend is to disconnect all Google based services like analytics and webmaster tools.

If you have any of these services you might as well tell Google everything you are doing as far as seo even if it is content based or white-hat in today’s standards.

Google labels anything that works as black-hat seo. Example: Directory Submissions used to be considered white-hat 10 years ago . Today it is considered “black-hat” Don’t believe the hype and disinformation Matt Cutts constantly makes ambiguous. Its all “DISINFORMATION”

First, you should know that when it comes to Google, the word “forever” doesn’t really exist . No matter what they do to a website, it is usually applied to a period of 3, 6, 9 or 12 months. (They seem to like the number 3!) Just remember, if you are banned or your Google rank is cut, your website will get back to working order sooner or later.

However, there is something you can do. Check your e-mail, and carefully read the message they have send you, make everything right, and ask for forgiveness (or in other words, you send a reconsideration request). Often times you’ll be back on top in about two weeks. And then, of course, you have two choices – you can either stop using poor practices, or wait for a while to let Google forget about your mistake and go on with the game, hoping whoever reported you will stop . However, this is quite risky and not recommend.

If your website has been penalized or banned from Google, you need to ensure it is “clean” and meets every one of Google’s requirements before you send your reconsideration request. Here is what you should do before sending a reconsideration request to Google:

1. Check your Google Webmaster Tools account for any warnings or crawl errors from Google Bot. Then disconnect the account from your site

2. Check if there are any hacker attacks to the server.

3. Check for any Malware (usually there has been inserted a malicious code through a script or iframe).

4. Check the file robots.txt in the main directory of your website. If you don’t have such a file, we recommend you to create it.

5. Check the amount of backlinks to your website, consider whether an increase or decrease in number seems unusual.

6. Check the HTML code and the CSS files for any hidden text or hyperlinks.

7. Check the external hyperlinks of your website.

8. Check if all webpages have a response for a header status.

9. Analyze all the changes you have made during the last SEO or re-design or your website.

10. Check the content users of your website have generated for any SPAM hyperlinks or unwanted content.

11. View your website using Googlebot for user agent (User-agent switcher).

Even when things look bad, know that everything is fixable with time. Pay attention to the problems that caused the penalty and fix them as soon as possible in order to regain your previous positions in search. While it will take time, it is possible.

source Search Engine