This article discusses a number of tools to facilitate community planning and development. Some of the tools and methods discussed include "box cities," in which 3D replicas of neighborhoods are built using simple materials like paper and glue, photomontage, the geographical information system (GIS)-based CommunityViz software package, and the UrbanSim simulation system. The article also discusses the PLACE3S (PLAnning for Community Energy and Economic and Environmental Sustainability) planning method, and regional resource centers to aid development