In the second of two navigation videos we filmed, Karl Shifflett joins John Papa to demonstrate how he made some simple extensions to the navigation API in Silverlight in order to solve very common business problems. Karl demonstrates how to navigate away from a screen and leave markers indicating that the screen is still active even though it is hidden. He also demonstrates how to manage state while navigating between different pages.   This episode is jam packed with a ton of great navigation strategies and tips that you won’t want to miss. Relevant links: John's blog and on Twitter (@john_papa) Karl's blog and on Twitter (@kdawg02) Non-Linear Navigation post by Karl MSDN’s Navigation overview Follow us on Twitter @SilverlightTV or on the web at   Registration for PDC10 is now open, and space is limited—don’t miss this opportunity to experience the PDC in Redmond. Join the PDC email newsletter for the latest information about PDC10.