Eventjoy - The Easiest Way To Organize An Event
EvePlaner - EvePlaner.net lets you create and manage your events the easiest way possible.
Meetup for iOS and Android - Discover groups that are all about the things you love
Tiny Reminder - Collect content & files from busy clients
TechEvents.co - Tech and startup events aggregator
Mixily - Hosting your event just got easier.