I have recently completed to develop the Navigation topic in my Silverlight Basics course. You can find the community free version (for personal usage) at www.abelski.org. The professional version can be found at www.abelski.com. The video clips below were prepared as part of this topic.

Lessons Learned from Running a Startup: The Bootstrap Way
If you consider running a startup the bootstrap way then you might get some insight from the lessons I learned.