To add to the GP: you might consider trying ultimate frisbee. The barrier to entry for a city league is really low (little athletic ability and no domain knowle

To add to the GP: you might consider trying ultimate frisbee. The barrier to entry for a city league is really low (little athletic ability and no domain knowledge required) and many players tend to be technical people: I know several software devs who play frequently. In addition, the community is the most welcoming and least disparaging I've ever seen in any organization, bar none. If you're really really not into athletic pursuits, I would second meetup.com for your interests. You also might check to see if your city has any bars/restaurants focused around board games or trivia. Those are also great for meeting new friends.