Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Shelfie - Get free and discounted Ebooks of your print or paper books
Facebook Local - Discover places to go and events happening near you
Over a call - Meet new people every week over 10 min calls
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Ovvio.io - Ovvio is a shareable notebook to manage your work across all your projects and collaborate with your teams