Meetup - Helps groups of people with shared interests plan events and facilitates off line group meetings in various localities around the world.
Foodetective - Simple food discovery from restaurants to bakeries
Facebook Local - Discover places to go and events happening near you
Tummy - The Food Finder - "A food finding app that actually makes sense."
Eventbrite - Discover Great Events or Create Your Own & Sell Tickets
The Infatuation - Restaurant reviews for the people