The category module allows you to structure your site into a tree-like hierarchy of pages, and to classify your dynamic content
benutzerfreundliches tagging UI
The Active Template module is similar to the ConTemplate module except that it works with Views instead of content types
This module is a little helper to maintain an administrator role which has full permissions
This module is a little helper to maintain an administrator role which has all available permissions. By default, Drupal only has one super user and this module helps improve this drastically.
Drupal Administration Menu provides a theme-independent administration interface (aka. navigation, back-end) for Drupal. It's a helper for novice Drupal users coming from other CMS, a real time-saver.
Advanced Forum is a "glue" module that provides a layer between the core forum module and all all the various modules that add the functionality found in stand alone forum software.
Ajax.module will AJAXify any Drupal form. This essentially allows for validation, preview, and submission without a page refresh. Ajax.module supports most forms out of the box. Ajax.module provides both an API for module maintainers as well as an admin interface for easy configuration.