- ClearMaps - GIS Directory Listing including lists of GIS software vendors, GIS organizations, GPS, remote sensing, free GIS data, and so on.
- Colorado's Portal - Categories for employment, internships/volunteering, data, events, education.
- GIS Landbase Information and Data Links - Lists national, regional, state and local sources for landbase related information and data.
- GIS Portal - A GIS resource with about 650 links.
- LLEK Bookmarks Scientific Search Engines - Lists German and English GIS resources.
- MapDawg's GIS - Links to maps, spatial data, and other items related to geography.
- Spatial Hydrology - Gateway to the world of hydrologic modeling, GIS, GPS and remote sensing.
- The GIS Notebook - A complete list of GIS web sites.
- The World of Maps - Links to catalogues of map collections and archives.
- Useful Resources for MapInfo Users - Directory of GIS-related links.
- Web-Mapper Online Mapping Resource - Portal containing GIS and mapping news and links.
