I have a site that I believe has incorrectly been dropped from Google's index. Can someone tell me how to contact Google about this? If I'm in the wrong forum I apologize, but I couldn't find any other forum that appeared more appropriate for this question.
I believe this is what you're looking for: FAQ: http://support.google.com/webmasters/bin/answer.py?hl=en&answer=35843 Submit reconsideration request: https://www.google.com/webmasters/tools/reconsideration
No one in this world can contact Google directly... If you have any problems then you want to make post in Google Support forum... if you are lucky then Google Employee may reply you... So upto me the only way to fix your problem is to find the problem and fix it...
First you need to know why it was de-indexed in the first place. Once you find the offending parts, better remove them and wait for the search crawler to update its information. Generally speaking, there is no thing as direct customer support at Google. Good luck.
Did you hire someone to do shady back backlinks? You probably need a managed monthly service. You can't just do some SEO once and forget about it!