Facebook PathPicker - Why Pipe when you can Pick?
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
replit - Code, create, andlearn together. Use our free, collaborative, in-browser IDE to code in 50+ languages — without spending a second on setup.
Google Groups - Google Groups allows you to create and participate in online forums and email-based groups with a rich experience for community conversations.
HackHub - Host tech events and hackathons with ease 👨💻🛠
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets