What are some of the more utilized WPF (optionally, including Silverlight) .NET forum/discussion sites?

Question

Just looking for a list of some popular WPF/Silverlight/C# sites out there for problems/troubleshooting that may need a little more back-and-forth to resolve than stackoverflow's format offers. (This is the issue that I think I should have dropped into an active "traditional" forum instead, in case anyone is able to assist: How are WPF Buttons and TextBlock styles related? , thanks.)

Answer 1

http://windowsclient.net/Forums/

http://social.msdn.microsoft.com/forums/en-US/wpf/threads/

http://forums.silverlight.net/