Can confirm. I met both of my girlfriends (sequential, not parallel) at meetups for a certain online community. And I wasn't even looking; it happened organically.

Turns out that if you go where people are basically guaranteed to share at least some of your interests, it becomes much easier to find someone you gel with.

Protip: Don't go looking to find a partner, try to make friends. If one of those friends ends up dating you, so much the better. If none do, you still made friends and that goes a long way already.