What should be included in a proper reconsideration request?

Could you please give details on what should be included in a proper reconsideration request? Benson Senator, Pittsburgh, PA Have a question? Ask it in our Webmaster Help Forum: groups.google.com Want your question to be answered on a video like this? Follow us on Twitter and look for an announcement when we take new questions: twitter.com More videos: www.youtube.com Webmaster Central Blog: googlewebmastercentral.blogspot.com Webmaster Central: www.google.com