The document describes GeoFarmer, a system for exchanging geographical data between farmers and the government. GeoFarmer aims to set up a web service allowing farmers to access and update their parcel registration information online. This would benefit the government by providing more accurate data and reducing the administrative burden on farmers, while farmers could more easily share information with other organizations through the same system. There is potential for GeoFarmer to be expanded to handle additional types of data exchange between farmers and the government in the future.