A very nice resource I just discovered is Project Rosetta, a site dedicated to helping designers and developers build applications in Silverlight while taking advantage of skills they already know. In the eleven chapters that already exist, advanced topics such as, Coded Animations, Dragging, Easing & Inertia, Loading Dynamic Images, Masking & Clipping, Color, Scale & Rotation, Trigonometry or Image Sequencing are discussed including working samples and source code in Adobe Flash and in Silverlight.
Project Rosetta Silverlight Sample
The examples are beautiful and appealing and each lesson has good references to articles covering the topic in discussion.
To track Project Rosetta you can subscribe to the RSS feed or follow the project on Twitter.
There is also some video coverage on the project:
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