Flickr has added a pretty cool new feature to their API set – Geofences. The idea is based upon the increasing concern over privacy, particularly spatial privacy. In the past versions of the API, one could only make the spatial location available to all or hide it from all. Geofences adds the ability to specify where ‘public’ photos are taken in your stream and where ‘private’ photos are taken. You can then share your ‘private’ fence with different classes of people of your choosing. For instance, you might make photos taken in and around your home in a ‘Family and Friends’ private Geofence and those taken at a public park as a public Geofence. The neat thing is you set the geofence spatially. You draw an area around a place you want to be private and by default any photos taken within that area are private. It’s a fairly cool implementation of privacy and it allows you to change your feelings about place without having to edit a ton of photos to reflect that change. Plus, to be honest, I love the phrase ‘geofence’ ?