Mike Taulty found a nice little tutorial for Flash in the ActiveTuts+ site and decided to create a Silverlight version of the same effect.
Source: Mike Taulty's Blog
For a little while now I’ve been dropping small Silverlight tutorials onto the ActiveTuts site which is, primarily, geared towards Flash development.
The ActiveTuts guys have been a real pleasure to work with, have a very large following and are really good at making your work look professional.