Here is a listing of Silverlight blogs and resources I stumbled onto today:
http://silverlight.net/blogs/msnow/archive/2008/05/05/silverlight-resources.aspx
Silverlight is Microsoft’s .Net/WPF powered competitor for Flash, except that Silverlight is much more targetted towards developers IMO. I think that it is a promising technology. Microsoft has made great improvements from 1.0 to the 1.1 Alpha to the 2.0 release. Silverlight has the opportunity to become what Java *should* have been: write once, run anywhere. Anyone who has written a Java applet knows how false this statement is for that platform. It will be interesting to see how Silverlight progresses.
