ClearMaps
   GIS Directory Listing including lists of GIS software vendors, GIS organizations, GPS, remote sensing, free GIS data, and so on.
   http://www.reach.net/~maps/clearmaps/clearmaps.html

Colorado's Portal
   Categories for employment, internships/volunteering, data, events, education.
   http://home.earthlink.net/~giswebmaster/

GIS Landbase Information and Data Links
   Lists national, regional, state and local sources for landbase related information and data.
   http://home.comcast.net/~rickking04/gis/gis.htm

GIS Portal
   A GIS resource with about 650 links.
   http://www.gisportal.com/

LLEK Bookmarks Scientific Search Engines - Cartography/GIS/Remote Sensing
   A comprehensive catalog of scientific resources and media worldwide but especially in German and English: Directories of Cartography Journals; Cartography-related catalogs of scientific search engines;additional starting points and sites of special intere
   http://llek.de/english/thematic/nature/earthsciences/karten_e.htm

Spatial Hydrology
   Gateway to the world of hydrologic modeling, GIS, GPS and remote sensing.
   http://www.spatialhydrology.com/

The GIS Notebook
   A complete list of GIS web sites.
   http://www.gisnet.com/notebook/index.html

The World of Maps
   Links to catalogues of map collections and archives.
   http://www.maps.ethz.ch/

Useful Resources for MapInfo Users
   Directory of GIS-related links.
   http://research.umbc.edu/~roswell/mipage.html