A group within MicrosoftCorporation that publishes guidelines for system design, maintenance, and management. Current work focuses on DotNet-related architectures and patterns.
Home page: http://www.microsoft.com/resources/practices/
Architecture Center: http://msdn.microsoft.com/architecture
To purchase printed material: http://shop.microsoft.com/practices/
WardCunningham, the creator of the WikiWikiWeb, has been working for MicrosoftPatternsAndPractices since December of 2003.
See also ApplicationArchitectureForDotNet, EnterpriseSolutionPatternsUsingMicrosoftDotNet