Please indicate Mathematics Subject Classification (MSC) sections in need of general revision, suggest specific additions and changes, or point out errors. Mathematical Reviews and Zentralblatt für Mathematik will carefully consider all feedback and use it in preparing their joint MSC revision to be used starting in 2010. The First Public Working Draft was published in January 2008, a Second Public Working Draft in March 2008, and a final Third Public Working Draft was finished in July 2008. There is an interactive TiddlyWiki form of the Third Public Working Draft of the MSC2010. The drafts were publicly developed using a MediaWiki at this site, namely the MSCwiki, and PDF forms of the latest draft are available there.