"Meetup.com is one of those services that will do the job of driving traffic to your meetup if you create one." This is a great point, but I think it's also important to focus on creating successful meetups. This is a huge time commitment. Creating a consistent arena for your user base requires coordinating activities that they would love, and then reaping the benefits of customer loyalty. It's an excellent idea, but you need to devote a good deal of time to it (sometimes even a person).