title: Is it a problem to have URLs that don't change much because of iframes?
body: <p>We're developing an application in ASP.NET.  As an example, for discussion purposes, let's say we have a menu on the left, and one menu item says Departments.  We click that.  It displays a list of departments in an iframe, to the right of the menu.  The url up top does not change.  Then we click on one of the departments, and detail information about that department is displayed in another iframe down below the list.</p>
  
  <p>The end result is that from the user's point of view, navigation is occurring, but the URL isn't changing.  Is this a problem?  Could there be implications that we don't realize?</p>