Municipalities

• Association of Municipalities of Ontario
• Council of Heritage Organizations in Ottawa
• Ministry of Culture's Directory of Municipal Heritage Committees (formerly LACACs or Local Architectural Conservation Advisory Committees)
• Municipal World Magazine
• Ontario Municipal Home Pages
• Ontario Professional Planners Institute

• Archives Association of Ontario
• Archives of Ontario
• Environmental Commissioner of Ontario
• Environmental Registry
• Heritage at the Ministry of Culture
• Ministry of Culture
• Ministry of Education
• Ministry of Municipal Affairs and Housing
• Ministry of the Environment
• Ministry of Natural Resources
• Ministry of Tourism and Recreation
• Natural Spaces 
• Ontario Heritage Properties Database

• Art Gallery of Ontario
• McMichael Canadian Art Collection
• Niagara Escarpment Commission
• Niagara Parks
• Ontario Arts Council
• Ontario Media Development Corporation
• Ontario Science Centre
• Ontario Tourism Marketing Partnership Corporation
• Ontario's Film and Video Industry
• Parks of the St. Lawrence
• Royal Ontario Museum
• Science North
• TVOntario
• Waterfront Regeneration Trust

• Gateway to Nunavut
• Gouvernement du Québec
• Government of Alberta
• Government of British Columbia
• Government of New Brunswick
• Government of Newfoundland and Labrador
• Government of Nova Scotia
• Government of Prince Edward Island
• Government of Saskatchewan
• Government of the Northwest Territories
• Government of Yukon
• Province of Manitoba

• Canadian Coast Guard
• Canadian Council of Ministers of the Environment
• Canadian Heritage
• Canadian Wildlife Service
• Departments and Agencies - Government of Canada
• Environment Canada
• National Library of Canada and National Archives of Canada
• Natural Resources Canada
• Parks Canada

• American Institute for Conservation of Historic and Artistic Works
• Convention on Biological Diversity
• English Heritage
• English Nature
• France - Ministère de la culture et de la communication
• France - Ministère de l'écologie et du développement durable
• International Centre for the Study of the Preservation and Restoration of Cultural Property
• International Council on Monuments and Sites
• Man and the Biosphere (UNESCO)
• The National Trust
• UK Countryside Agency
• UNEP World Conservation Monitoring Centre
• UNESCO Sector for Culture
• United Nations
• United Nations Environment Programme
• US Advisory Council on Historic Preservation
• US Fish and Wildlife Service
• US Geological Service - Biological Resources Division
• US National Park Service
• US National Trust for Historic Preservation
• World Conservation Union (IUCN)
• World Heritage

• Canada's SchoolNet
• Canadian Children's Museum
• CBC.ca Kids
• EyeWitness
• Harriet Tubman and The Underground Railroad
• Heritage For Kids
• Interactive at the Royal Ontario Museum
• Kids' Activities and Education - Canadian Wildlife Service
• National Geographic Kids
• Ontario Science Centre
• OWLkids Online
• POP! Magazine
• Science North on the World Wide Web
• TheHistoryNet
• TVOKids.com
• World Wildlife Fund for Kids
• Yahooligans!

• Archaeology Magazine
• Canadian Geographic
• CNEWS: Today In History
• Discovery Channel Canada
• Edifice Magazine 
• History Channel (US)
• History Television (Canada)
• History Today
• National Geographic Magazine
• Rogers Television: Structures
• Sympatico News: On this day
• TFO
• TVOntario

• Attractions Canada
• Attractions Ontario
• Folk Arts Council of St. Catharines Multicultural Centre
• International Centre for Responsible Tourism Canada
• Kingston Economic Development Corporation 
• Niagara Parks
• Parks Canada
• Parks of the St. Lawrence