Module Link: http://drupal.org/project/menu_block The Menu Block module allows you to take multiple level menus and split out their contents at various levels and put them into blocks.
Who: Technical users (since the configuration can be confusing) When: Use this module when you keep all of your navigation in one menu (like primary) and you want to be able to split out a lower branch of the menu without having to show all of it's parents. Where: Aside from setting up your menus normally, all configuration takes place in the blocks section (look for the tab) Why: Sometimes you don't want to show ALL of a menu but you want to show an item and some or all of it's children.
