Decision support services for companies, organizations, governments, individuals and others based on analyses and modeling scenarios using a high capacity, integrated, Geographic Information System-based digital database that is multi- layered, national in scope and local in scale, access is through user-defined interfaces that allow querying of spatial, temporal and hierarchical information about the state and potential of natural resources, the environment and ecosystems, developed and undeveloped urban/suburban/rural areas, socio- economics of human populations and their settlement patterns ---- all as systems within systems, for analysis for educational, environmental, agricultural, political and business-based purposes through the Internet, on servers, workstations and PCs