OK, check it out...
Mid-Atlantic 370Z Owner's Club (Fairfax, VA) - Meetup
You just need to sign up for a Meetup account (free) and you can RSVP to events, upload photos, post comments, start discussions (message board for the group), and suggest events. When you sign up I will confirm you.
It's not free for me, but it's free for you guys so let's test it out and see how it works. We use this in another group I'm a part of it and it has worked really well, especially since individual group members can add their own events.
