@Padme Old school networking has worked for me! Friends of friends, and their friends too! I started collecting acquaintances at festivals like regional Burning mans (near me it's called http://soakpdx.com/) where there are quite a few poly people, or at least know poly people who I could meet. This is how I met one partner.

Another I met on OkCupid, so there's always that I guess. It seems much more difficult as women are inundated with scum and men are mostly ignored.