Abstract: A personal, group, and community spatial-temporal based information system for the storage, management and sharing of user annotated spatial-temporal based information is disclosed. Spatial-temporal information is provided to the system by a variety of remote users. Geographical coordinates and time are automatically stored or sent by the device to a spatial-temporal sub-system which includes a spatial-temporal information database and a geographical information system database. Users can easily add highly accurate and relevant spatial-temporal information into a personal information management system, to be stored, shared, edited and managed by the user.