Contextual navigation refers to navigation techniques that allow your audience to move between interfaces whose content is related contextually. There are two ways to think about contextual navigation: parent-child and siblings.
Thank you for your interest. I apologize for any inconvenience this limited access causes. This online guide is now a book called Drupal: The Guide to Planning and Building Websites. The content of the guide is being updated, expanded, and edited. It will include tips for D6 and D7. I hope you will find it useful.
