The WPF & Silverlight Designer Team (Cider Team) has just launched a new team blog at: http://blogs.msdn.com/wpfsldesigner/default.aspx
During the months of Janurary and Feburary 2010 we will be adding a good bit of WPF & Silverlight content.
This initial content will focus on the Designer toolset and walkthroughs using the Designer as well as some posts for control authors.
from Karl on WPF more here