Publishing Lists & Email Users Based on Groups

As an analytics admin, I only want to maintain a single set of user permissions and user groups.  Currently we have to maintain our user groups and permissions and a seperate list for emailing.  Publishing Lists & Email Users options should include as default lists the ability to select groups defined in the user management area.  You could then send a report or an email to all the users defined in this group instead of having to build a seperate publishing list that replicates these admin groups.