- AEGIS was created by the Department of Physical and Earth Sciences of Jacksonville State University (Jacksonville, Alabama) and Friends of Rural Alabama. The system uses ArcIMS (Internet Map Server), an ESRI product, to provide the maps and environmental data to anyone who has internet capabilities.
- Conservation Technology Support ProgramConservation Technology Support Program annually grants software and equipment for non-profit groups looking to expand GIS capabilities. Check out their website for a list of free online map-making services.
- Datashed is a fully-featured, GIS enabled, Internet database designed to assist watershed groups, academic institutions, private industry and government agencies.
- IM Rivers is a new web site that nonprofit River Network Partner groups can use to develop interactive watershed maps and make them available to the public. For a small monthly fee, watershed groups can now use this tool to develop maps that until recently would have cost tens of thousands of dollars. The maps can display multiple layers of information including data, photos, videos and text.
- Pennsylvania Organization for Watersheds and Rivers (POWR) (list of sources)