Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Morris - Video stories for podcasts
Facebook Local - Discover places to go and events happening near you
mojo iOS - Create stunning video stories
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
Onescreener E-commerce - Social commerce made super easy from Onescreener