Abstract: A system for collaborative decision-making and more efficient disaster management, in which multiple geobrowsers can communicate over local networks and/or the Internet to create a real collaborative experience when dealing with geospatial information, distributed using Open Geospatial Consortium (OGC) compliant KML/KMZ formats, WMS (Web Mapping Service), or and geospatial data files. All manipulation functions (dataset loading, layer stacking, layer visibility changes, Point of View (POV) changes, map extent changes, looping and animation settings, geospatial file creation and annotation drawing, and other functions) are replicated across all connected geobrowsers to create a true collaborative geospatial Common Operating Picture (COP). The leadership role can be handed over to other users if desired to build upon all the datasets and annotations sent by previous leads.