If your site isn’t appearing in Google search results, or it’s performing more poorly than it once did (and you believe that it does not violate Google’s Webmaster Guidelines), you can ask Google to reconsider your site. In the past you would receive notification that your reconsideration request has been received – with another notification once it was processed; however more and more webmasters wanted to know the outcome of their requests. Now, if your site is affected by a manual spam action, Google may let you know if they were able to revoke that manual action based on your reconsideration request. Or, they could tell you if your site is still in violation of their guidelines. This might be a discouraging thing to hear, but once you know that there is still a problem, it will help you diagnose and fix the issue.
While Google still will not reply to individual requests – these more detailed reconsideration request responses will help many webmasters find out the reasons behind their sites poor performance within the Google engine. For more help debugging ranking issues, read Google’s article about why a site may not be showing up in Google search results.