Best online communities for people building the future?

I'm working on podaero.com with a goal kind of like this - I will be launching some public groups over the next week (it's been private for a while). I'm planning a 'Show HN' soon.

I'm interested in the idea of group-power and building complex organizations out of small groups - or at the minimum, providing a good place for "project people" to be part of a long term support community. The focus is on small (but not tiny) groups where people can effectively network and get to know each other.

Feel free to email me (see profile) to get in touch.

Hacker News is the best I can think of.

It is quite new, so many not have the "best place" tag yet, but a discord channel https://discord.gg/MzhGqQC is a place for meeting people who are working on startups.

I've been thinking of creating a small/intimate Mastodon instance purely for this reason. Do you have any thoughts on that?

Hi, can you count me in? Please, this is the most in tune idea, I have heard in a long shot.

groups and communities are too regressive these days, i think individualist media like twitter is the place where most original voices are

Look offline.

Count me interested!