New Foursquare-powered site Avoidr helps you keep tabs on your enemies to avoid awkward run-ins while you’re out.
When you log in with your Foursquare ID, you’re presented with a list of your Foursquare “friends.” You can choose which friends you want to avoid and even add an insult (such as “jerk,” “cow,” or “psycho”). Once you click “avoid,” they’re dead to you. Click “Places to Avoid” to see a list of places you shouldn’t go if you don’t want to run into your enemies.
While it’s probably not that useful of a site â€” since you can do basically the same thing from your friends list in the mobile apps â€” it shows yet another creative use of the data available through the Foursquare API.
/via Into Mobile