It was recently pointed out to me that meeting participation appears low, from the meetup.com view. It doesn't look like many people RSVP.
We usually have 6-12 people attend our meetings. I started the meetup group so people could find us more easily. Most regular participants aren't even members of the meetup at all!
We also use our own mailing list. You can join at:http://www.maxkessler.org/mailman/listinfo/grlp