Startup Study Group: http://startupstudygroup.com/slack/ International product community. Haven’t accepted my request yet.

TechMasters: https://techmasters.chat/ Discord community.

Product School: https://productschool.com/slack-community/ Product Management courses (maybe).

CreativeTribes: https://creativetribes.co/ Group about entrepreneurship and startups, growth hacking, productivity, and business and marketing strategy.

Furlough: https://discord.com/invite/furlough Can’t say anything good or bad, it seems I’ve been banned from there for no reason when I just signed up.