Take a look at the new SilverlightShow articles from last week (November 7-13, 2011) ranked by popularity:
    - Working with Prism 4 Part 1: Getting Started by Brian Noyes
 
    - 10 Laps around Silverlight 5 (Part 5 of 10) by Michael Crump
 
Both of the articles have been exclusively authored for SilverlightShow.