The next ProQuest platform maintenance window will be on September 26, 2009. A twelve (12) hour maintenance window will take place for maintenance. The window will take place from Saturday, September 26, 2009, at 7:00 PM Pacific Standard Time to Sunday, September 27, 2009 at 7:00 AM Pacific Standard Time. The following products will be unavailable during these windows: ProQuest platform products, ProQuest Historical Newspapers (traditional and graphical K12 interface), American Periodicals Series, ProQuest Obituaries Chadwyck-Healey products only in North America CSA Illumina products such as CSA Technology Research Database, Illustrata: Natural Sciences, and CSA Sociological Abstracts UMI products including online dissertation products Please share this information with your colleagues.