Mixily - Hosting your event just got easier.
Hop - Spike makes working easier and more efficient. Saving you and your team time, sanity, and a lot of headaches.
EvePlaner - EvePlaner.net lets you create and manage your events the easiest way possible.
Funnster - The best way to get together with your friends and family
Nusii - Collect content & files from busy clients
Gigstarter - Gigstarter uses crowd funding to take the pain from arranging events.