RoleAssign specifically allows site administrators to further delegate the task of managing user's roles while withholding the Administer permissions permission.
This module allows users to set privacy options for their profile fields when using the core profile.module. It does not create any settings pages or configuration screens, and it integrates seamlessly with the existing profile module.
This module enables a user with the proper permissions to build group hierarchies (or tree) by nesting groups under other groups. Simple or complex group hierarchies can be easily created.
When a hierarchy has been established, user memberships and/or content posted to a group can be propagated up, down or sideways along the tree. So when a user joins a group, their membership can also get created in other parent, child or sibling groups. Separate propagation settings can be applied for content and membership propagation.