Some new ASP.NET smart articles

Do you know what has .NET Framework in it?

I just have found such a perfect post:
The Most Useful .NET Utility Classes Developers Tend To Reinvent Rather Than Reuse written by Phil Haack. This is a wonderful discussion with samples what is included in the .NET Framework that we should use direct from the System namespaces instead of writting custom methods.
I sugest you to read the comments too. There are some very useful notes.