http://blogs.msdn.com/rholloway/archive/2007/02/17/product-team-blogs-running-on-sharepoint.aspxThe MSDN and TechNet blogging infrastructure is based on Community Server (based on the old .Text code base). This has served the Microsoft blogging community well, but now that SharePoint supports blogs I know that a lot of people have been curious toen-USCommunityServer 2.1 SP1 (Build: 61025.2)