I got an email the other day that included a twitter post with a link to this "map" of our documentation samples. It is a pretty fun way to see what all we have available. I don't know who created it but I really like it!  Especially since we had a hard time designing our wiki page on code gallery. Check it out and see what you think. http://vivamind.net/maps/detail/70/WPF-Documentation-Samples

Margaret