Mixily - Hosting your event just got easier.
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Diobox - All-in-one event and guest plafrom with a built-in CRM
Facebook Local - Discover places to go and events happening near you
SlickPix - Instantly create dynamic events from multiple cameras
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets