ADO.NET Entity Framework
http://msdn.microsoft.com/en-us/data/aa937723.aspx#
http://msdn.microsoft.com/en-us/library/bb399572.aspx
ADO.NET Data Services Framework (formerly “Project Astoria”)
http://astoria.mslivelabs.com/
ADO.NET Data Services Team Blog
http://blogs.msdn.com/astoriateam/
ADO.NET team blog
http://blogs.msdn.com/adonet/