Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Eaze - Uber for medical marijuana
Event Hunt - Startups and Tech Events Curated By Locals
Marijuana 101 - Free course to become a better cannabis user in 10 days
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Confident Cannabis - The stock exchange of weed