I think Domain Access might be useful to you.  Alternately, you may be interested in Nate Haug's post on using table prefixing to do single-sign-on: http://www.lullabot.com/articles/drupal-single-sign-across-sub-domains

-Randy

On Tue, Jun 1, 2010 at 11:35 AM, Debra Willrett <dwillrett@expertsoftwareconsulting.com> wrote:
How do I restrict user management in a subdomain environment?  For example, I don't want a chapter administrator to view and edit all chapter members across all chapters, but I do want to give that ability to a super admin.  I installed the Role Delegation module, but that doesn't restrict viewing the list of all users, it just linits roles when new users are created.  Any suggestions?  Thanks.

Debra





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Randy Fay
Drupal Module and Site Development
randy@randyfay.com
+1  970.462.7450