Eventjoy - The Easiest Way To Organize An Event
Event Hunt - Startups and Tech Events Curated By Locals
TechEvents.co - Tech and startup events aggregator
Hop - Spike makes working easier and more efficient. Saving you and your team time, sanity, and a lot of headaches.
EventsApp - A simple concise app for creating and sharing events.
Facebook Local - Discover places to go and events happening near you