WatermarkedTextBox for Silverlight 2 Beta 2 - You may have noticed that WatermarkedTextBox no longer available in the latest SDK. Kathy Kam discusses why it is that way and distributed a WatermarkedTextBox source code and unit test.
How to consume WCF or Webservice from Vista Sidebar gadget by using Silverlight? - Thamir Khason battle most of the problems you can face developing a Vista Sidebar gadget with Silverlight.
How to write your own EventDispatcher - Scott Barnes make use of an EventDispatcher approach to routing events around the code base.
Parts & States Model with VisualStateManager (Part 3 of 4) - Karen Corby continued her excellent series digging into the Parts & States Model.
Using ASP.NET Authentication in a Web Service with Silverlight - Brad Abrams walks through the implementation of a WebSerivce that returns different results depending on who calls it in a sample Silverlight + ASP.NET application.
Silverlight 2 Samples: Animating Controls - Martin Grayson shows how to extend the Control class and add animations when the control's size or position is changed.
Silverlight Encryption - Great 3 part tutorial and a screencast on encrypting the data saved in the client's isolated storage.