With Silverlight 4.0 just announced, here are some great posts / helpful tips on getting started with Silverlight in general.
- Channel9 has a training course.
- Tim Heuer has a 7-part series “Getting Started with Silverlight”.
- Shine Draw is an awesome “Flash vs Silverlight” repository that can show you how to do an event in either technology.
- Silverlight.net has an abundance of information. They also have Community Samples as well.