Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
JetHop - Discover your next vacation without needing a destination!
Cvent - Cvent's event management software provides event planners with a complete solution to increase event attendance and decrease event costs.
Maptia - Explore and contribute to a world of stories
Eventzilla - Eventzilla lets you sell tickets online and manage attendees from one integrated application.
Mapstr - Your places, your world!