IMAGIN (Improving Michigan's Access to Geographic Information Networks) - a network of individuals and organizations interested in the use and application of GIS technology in Michigan.
Michigan CGI (Center for Geographic Information) - the state agency that supports and creates geographic data (such as the Michigan Geographic Framework, or MGF) for the state of Michigan.
SEMCOG (Southeast Michigan Council of Governments) - a regional planning organization, accountable to member local governments.
General GIS Information
Links to learn more about GIS.
ESRI (Environmental Systems Research Institute) - a resource for GIS information, scripts and a variety of online GIS training courses.
URISA (Urban and Regional Information Systems Assocation) - a non-profit association whose members use technology such as GIS to solve problems at the state and local levels.