I've created this private meetup group to help us better organize our screening events. Everyone can see ahead of time whether or not someone has volunteered to host an upcoming event, so we'll know exactly which events are still looking for a host, and generally have more notice as to where we're going and when.
Beyond that, you can also use this group to invite members to all sorts of fun social events. So if you're planning on doing something fun and would love to have members of the group join you, you can simply create an event and it will be immediately announced to the group.
Only people who've attended our screenings can see information posted in the group, so you can also feel free to use the message boards to discuss anything going on in your life, and generally stay in touch with the group more easily.