Calendify - Calendify is an event community where you can share, publish, and subscribe to event calendars. It helps you to stay informed about what you are interested in and what is yet to come.
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Morse - Create, shout out, and discover nearby events in real time
Event Hunt - Startups and Tech Events Curated By Locals
Colloq.io - Discover a new way to the conferences you like.
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets