Event Hunt - Startups and Tech Events Curated By Locals
Winkli - Discover who you'll bump into at your Facebook events
Facebook Local - Discover places to go and events happening near you
Eventjoy - The Easiest Way To Organize An Event
Remember The Milk - Remember The Milk is a task and time management application for mobile devices.
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.