Two members areas?

Hi,

I just took over a WordPress web site. Unfortunately I am not familiar with the WordPress, so I would greatly appreciate any suggestions, please.

We already use a Members area on the web site, but we need to create another password protected area for a different group with administrative area with possibility for the members of this new area of to update their own web pages and to house other administrative documents for the group to share. Is this possible and how is it done?

Thank you

Lana