Association of American Geographers (Popularity: ): Organization devoted to the study of the theory, methods, and practice of geography. Includes information on activities, membership, and the association newsletter. Australian Geography Teachers Association (Popularity: ): National association representing state affiliated geography teacher's associations in the promotion, communication, and development of geography education within the professional and wider community. The Geographical Association (Popularity: ): United Kingdom association dedicated to promoting the development of geography as a subject. Provides support, resources, journal to professionals engaged in geographic education. The Geography Teachers Association of South Australia (Popularity: ): The GTASA is the professional association of geography teachers in the State of South Australia. The site provides a service for its members and those interested in geography education. Geography Teachers' Association of Queensland Inc. (Popularity: ): The GTAQ is the major body representing Geography teachers in Queensland. The site provides information on the Association, its activities, as well as resources for Geography Teachers. Institute of Australian Geographers (Popularity: ): An academic organization which promotes geographical research in Australia and abroad. Program for the Human Environment (Popularity: ): A research center at Rockefeller University that explores how long-run technical change relates to productivity and efficiency of energy, materials, land, and other resources, and the consequences for human populations.