Eventjoy - The Easiest Way To Organize An Event
Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.
Meetup for iOS and Android - Discover groups that are all about the things you love
Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.
TechEvents.co - Tech and startup events aggregator
Attendify - Develop relationships at the events that you attend by creating smaller events with just a few people.