Database stuff
Denis Gobo - C# IsNullOrEmpty Function In SQL Server

Other stuff
Rob Relyea - Compile Xaml to C# (.cs)
Ayende Rahien - How complex can this be?
Jim Holmes - XSL Transforms and Included/Imported Sheets with DTDs
Bil Simser - Coalescing with ReSharper 3.0
Phil Haack - The Most Useful .NET Utility Classes Developers Tend To Reinvent Rather Than Reuse

Web stuff
Fredrik Normen - Create a "class" (type) in Java-Script by using the ASP.Net Ajax Library

Career stuff
The Igloo Coder - Guiding principles for running your project
Scott Sehlhorst - Planning for Effective Meetings
Scott Hanselman - Some Guiding Principles for Software Development