MSDN新推出了介绍的asp.net 2.0的provider model的白皮书,详细请看这里
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnaspp/html/ASPNETProvMod_Intro.asp
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnaspp/html/ASPNETProvMod_Intro.asp