Mapiful - Create & order custom printed maps of your favorite places
Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Grafomap - A map poster of your favourite place on earth
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
TiltMaps - Create map posters of your favorite places & memories.
Bigtent - BigTent is a web-based organization and communication portal for groups.