Shame on you! What did you do? Come on, tell me. Was it hidden text? Keyword stuffing? No? Oh, you were cloaking. Well, if you corrected the problem you can go here http://www.google.com/support/bin/request.py and tell Google how very sorry you are.
Be sure you let them know it will never happen again. Now go sit in the corner and wait until you are re-included.
