Asp.net, huge improvement just in three years!

I was reading my notes taken three years ago regarding Asp.net (C#), but there is a big difference from the actual Asp.net (C#) with my old notes. There has been a huge improvement! For example: linq, entity framework, lambda, ..., I have decided to order a good book on C# 4.0, from Oreilly press. Today I put my old notes in bin! I am making the new notes. I will keep you posted! Stay tuned!