More generally, the connection between city or village name and position can be flawed. Spatial image browsers such as Google Earth make use of several databases that link place names with latitude and longitude, and unfortunately all such databases suffer from inaccuracies, such as placing Islamabad 100 miles from its true location. All mapping efforts, whether community based or UN supported, would benefit from a stronger feedback mechanism, such as a community filtering system that enables authenticated individuals to update shared geographical data online. For example, we hope that database providers will support initiatives, such as the Geonames Forum (http://www.geonames.org/about.html).