GIS Day: "GIS Day is a grassroots event that formalizes the practice of geographic information systems (GIS) users and vendors of opening their doors to schools, businesses, and the general public to showcase real-world applications of this important technology. The event is principally sponsored by the National Geographic GIS Day 2002 at the Smithsonian Institution in Washington, DC Society, the Association of American Geographers, University Consortium for Geographic Information Science, the United States Geological Survey, The Library of Congress, Sun Microsystems, Hewlett-Packard, and ESRI."

GIS Day is a yearly event that happens world wide. Share your knowledge about GIS, or attend an event and learn more!