https://www.dotnetzone.gr:443/cs/blogs/dt008/archive/2009/09/25/open-source-interoperability-sites-at-microsoft.aspxThis blog post is dedicated to provide a list about the open source sites at Microsoft. Most of the following sites have rather extensive content in regards to open source and interoperability and I believe most of you will be surprised with them! http://www.microsoft.com/opensourceelCommunityServer 2.1 SP3 (Build: 20423.1)