The open source augmented reality server, or POI (Point of Interest) search. In its simplest form, it takes a database of points with latitude/longitude, and a search request at a given latitude/longitude, and returns the points sorted by distance.
CommonMap is an open source map project, forked from OpenStreetMap by a licence problem. CommonMap needs original softwares tuned for CommonMap. Most of software would be useful for any other open source map projects, too.
Mapstorer is a PHP/MySQL based tool for managing UMN MapServer projects. It allows users to maintain map projects via web browser and create MapServer configuration files (mapfiles) on the fly.