With a team that spans SF and NYC, Foursquare decided to get creative to make sure employees could always talk to one another. The main room in each office features a "Portal"—a live-streaming TV set-up that allows people to feel like they're in the same room, talk to each other, and collaborate across the country.

With the Foursquare app, you can use your phone's GPS to "check in" wherever you are—whether that's your favorite coffee shop, a show, or just your apartment. You'll unlock expertise badges along the way that tell the world you're a movie fanatic or a sushi expert or a dog lover. And when you're ready for a night on the town, open up Explore to receive personalized recommendations of great new places you and your friends will love.