Model UN
United Nations
U.S. Department of State
National Model United Nations(NMUN-DC)
United Nations Association of the United States of America (UNA-USA)
United Nations International Model United Nations (UNIMUN)
American Model United Nations International (AMUN)

Other UN-related resources
United Nations CyberSchoolBus - global teaching and learning project
Home Pages of Permanent Missions to the UN in New York
United Nations Scholars' Workstation - at Yale University
United States Department of State - For Youth
United Nations