Download:  http://code.msdn.microsoft.com/CSSL4FragmentSearch-abb6a266

This sample is a very simple implementation demonstrating the use of fragment navigation within Silverlight to perform a search.  This allows users to save a URL and return immediately to their search location later using a link.  Of course, the fragment can be used in many other ways to track state, not simply to provide a search, but this shows the usefulness of the technique to preserve state within Silverlight using fragments.