Community maintainer having an e-mail list of their members.
Short, concise description of the idea
Basically, just having an updated list of member's e-mail addresses available to the community maintainer.
Full description of the idea
I'm not sure where the best place for the list to be, but possibly in the "Members" link under Maintaining Communities, underneath the users name. I know I have one post in one of my communities for the sole purpose of news, and it would be much easier to just have a list of e-mail addresses to send something to. (Most people don't have time to go through and find 1000 members e-mail addresses out of their userinfo).
An ordered list of benefits
An ordered list of problems/issues involved
An organized list, or a few short paragraphs detailing suggestions for implementation