Currently I do a lot of work with Linq (e.g. C# workshop in Frankfurt in April). In this blog I want to mention some resources I found very useful to enhance knowledge about the new data access technology and about the underlying new features of C# 3.0.
Video about Linq to SQL
A great video of Luca Bolognese (Lead Program Mangager of Microsoft) about Linq to SQL. He did this presentation at TechEd 2008 in Barcelona. I heard it live and I personally think it was the best session of TechEd 2008!
http://www.microsoft.com/emea/msdn/spotlight/sessionh.aspx?videoid=716
Video about C# 3.0
In my opinion the absolutely best way to really learn about a programming language is to listen to those people how design it. Anders Hejlsberg is the chief architect at Microsoft for C# and Linq. At TechEd 2008 he did a talk about C# future directions.
http://www.microsoft.com/emea/msdn/spotlight/sessionh.aspx?videoid=319
Video about Linq Overview
Anders Hejlsberg again; this time he gives an overview about the Linq Framework.
http://www.microsoft.com/emea/msdn/spotlight/sessionh.aspx?videoid=317