WPF and Silverlight Programming

I have been programming Silverlight for some time now. I have had some hard times trying to grasp the design end and have found some great resources that I would love to share. Hopefully it helps you like it has helped me with Silverlight and WPF:

Windows Presentation Foundation
WPF Architecture
http://msdn.microsoft.com/en-us/library/ms750441.aspx#

XAML
http://msdn.microsoft.com/en-us/library/ms747122.aspx

Base Elements
http://msdn.microsoft.com/en-us/library/ms746683.aspx

Element Tree and Serialization
http://msdn.microsoft.com/en-us/library/ms750605.aspx

Properties
http://msdn.microsoft.com/en-us/library/ms753192.aspx

Guidance on Differences Between WPF and Silverlight
http://wpfslguidance.codeplex.com/