Articles at MSDNAA
The following two articles at MSDNAA are pretty interesting:
Use Design Patterns to Simplify the Relationship Between Menus and Form Elements in .NET - In Windows Forms applications, similar commands, such as those in a menu and their counterparts on a toolbar, are not automatically related. They don't fire the same event or run the same handler routine. Yet code that allows the same or similar user commands to fire the same code simplifies development. This article describes the principles of command management and why it's important to have functional commands that are not exclusive to any one UI element.
Performance Comparison: Exposing Existing Code as a Web Service - This article provides a performance comparison between three Web Service implementations that expose existing COM components and Transact SQL code and an equivalent Web Service implementation using ASP.NET.