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

Fig - Fast, isolated development environments using Docker.

Event Hunt - Startups and Tech Events Curated By Locals

Teleconsole - Teleconsole is a free service to share your terminal session with people you trust.

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

Shell Notebook - MacOS Terminal, reimagined