- Discovering city trends and attitudes Foursquare engineers recently determined the rudest cities based on the amount of profanity used as people checked into certain locations.
- Discovering new food Foursquare recently announced a special Mario Batali badge that users receive after checking into one of his restaurants. But besides the badge, you'll also get special food recommendations from the chef himself. I always check Foursquare tips from friends if I'm eating at a new place; chances are someone will have left a note detailing a favorite dish.
- Creating a personal history log The site Foursquare&7Years will email you with a daily reminder of what you were up to a year ago. You can also access your own history through the site and app, which is fun to do if you're feeling nostalgic.
- Upping your credibility Whether it's geek cred you're after or something else, Foursquare does indulge a little bit of nepotism, especially when you're checking into somewhere especially awesome, like a hot restaurant or concert.
- Having a laugh While I wouldn't necessarily encourage checking into one of these places — strip clubs and bathrooms make funny check-ins when you're just playing around with friends.