One of our demo guru User Experience folks just released bite sized tutorials for Silverlight. Really well done.
I would like to invite you to visit a new series of tutorials built 100% in Silverlight:
http://www.nibblestutorials.net/
Also, there is a blog that you can subscribe to be notified when new nibbles are added, and also to send feedback:
http://blog.nibblestutorials.net/