Geotagging Photos - GPS Receivers and Software

What is geotagging?
Geotagging is a process, which is used to embed geographical data, usually longitude/latitude/altitude/geonames (place names) and other geographical data within the metadata into photographs, videos and other types of media formats. It is commonly used by photographers who use the geotagging process to keep track on the exact place (coordinates) where the photo has been taken