Submenu autopopulates any nav menu page item with its children and allows to put menus, or portion of menus, anywhere in your site.
This plugin allows you to mark a page as "Members Only" and still add it to menus (Only visible if logged in)
This plugin alters the custom menu auto-add function allowing subpages and delete menu item after un-publishing a page.
TwentyTen is a great new theme for WordPress, However the Visual editor is limited to 640px content width, This restores it to full width editing
Separates active network plugins from inactive ones on the WordPress network plugins page. Requires WordPress Multisite.