Drupal Videos: User management

Drupal 7 and DrupalGardens: Give users access to overlay

How to enable access to content editing and adding with the administration toolbar and the overlay in Drupal Gardens.
Drupal 7 and DrupalGardens: Add a user role

How to create a user role, and set the user permissions to create a poll, a in Drupal 7.
How To: Enhance Drupal's user access, features and control

Allow other users to contribute content to your site with a degree of control over who can contribute, how they contribute and what the process is.
Drupal Basics - The Default User Login

This video shows users how to navigate to their user account page, login, and do some basic account administration.
Drupal Basics - Creating Users and Assigning Roles

This video is a quick tutorial of how to create a new user and assign that user a role in the system.
How To: Manage Drupal Permissions More Easily

This video describes how to extend the level of control of Drupal permission using a collection of contributed modules.
Using views with access controls in Drupal

In this screencast, I demonstrate building custom content pages that are accesible to different roles.
Adding Community Features To Your Site

This Drupal tutorial video shows you how to add community features to your Drupal site.