Some articles for dotNET developer from MSDN Magazine

Garbage collection:
Garbage Collection: Automatic Memory Management in the Microsoft .NET Framework – MSDN Magazine, November 2000
Garbage Collection-Part 2: Automatic Memory Management in the Microsoft .NET Framework – MSDN Magazine, December 2000
Garbage Collector Basics and Performance Hints – MSDN

widely spreaded article about tools:
.NET Tools: Ten Must-Have Tools Every Developer Should Download Now – MSDN Magazine, July 2004

wix and msbuild:
WiX Tricks: Automate Releases With MSBuild And Windows Installer XML – MSDN Magazine, March 2007

something new:
CLR Inside Out: .NET Application Extensibility – MSDN Magazine, February 2007
CLR Inside Out: .NET Application Extensibility, Part 2 – MSDN Magazine, March 2007
CLR Inside Out: 9 Reusable Parallel Data Structures and Algorithms – MSDN Magazine, May 2007