Geotagging can be a great hobby ... as long as the GPS works correctly, of course.
GPS units are growing in popularity as add-on units for digital cameras, providing information on the location and time of the photo. This can be a nice feature to have for your camera, as the unit's software will add the information about the location to the data that's stored with the photo.
Whether your GPS unit is built into the camera or is an accessory that you must add to the unit, it certainly can suffer from some problems from time to time. Click the link to learn about how to troubleshoot your camera's GPS unit.