GeoWeb - Geographic Information Retrieval (GIR), methods and approaches to make digital geographic information and data more easily accessible to GIS researchers and the general public.
Getty Thesaurus of Geographic Names (TGN) - a structured vocabulary developed primarily for the field of art history, but with the potential for wide applications in related disciplines such as archeology, history, and geography.
Helping Your Child Learn Geography - from creating treasure maps to helping children find pen pals, this site offers many simple, fun activities to teach youngsters the fundamentals of geography. From the U.S. Department of Education.
How Far Is It? - find out how far apart any two places are and see them on a map.