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.
Loxi - Easily add an events calendar to any website.
Vamos - Local Event Discovery
Whenever - Casual calendar app for iOS
Morse - Create, shout out, and discover nearby events in real time
Calendar by 44 - Blazingly fast calendaring