Event Hunt - Startups and Tech Events Curated By Locals
Swarm - Swarm lets you earn prizes and compete with friends based on the places you go.
Facebook Local - Discover places to go and events happening near you
Arc App - AI powered location tracker
Eventjoy - The Easiest Way To Organize An Event
Foursquare - Foursquare is all about helping you find new ways to explore your city.