Konflist - Curated list of tech conferences all around the world!
1up Events - Corporate events as a service
Event Hunt - Startups and Tech Events Curated By Locals
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.
Shapr - A completely free way to build your professional network.
Facebook Local - Discover places to go and events happening near you