Padlet - Visual boards for organizing anything.

Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.

Snapchat - Real-time picture chatting

Google Groups - Google Groups allows you to create and participate in online forums and email-based groups with a rich experience for community conversations.

X (Twitter) - Connect with your friends and other fascinating people. Get in-the-moment updates on the things that interest you. And watch events unfold, in real time, from every angle.

Eventbrite - Discover Great Events or Create Your Own & Sell Tickets