Ask HN: How did you find your online mastermind group?

After hearing about mastermind groups in various podcasts and blog posts, I read up and went to meetup.com to look for one. Unfortunately, my area is a bit lacking, so I tried googling for some mechanism to join an existing group (lots of "how to start a", no "how to find a"). Instead of submitting to the urge of coding a mastermind dating service, I thought I'd ask here.

How do you find a (n online) mastermind group?

Thanks!