National Council for the Social Studies
Connecticut Council for the Social Studies
Connecticut Museum of Culture and History
Connecticut River Museum
Mashantucket Pequot Museum
Historical Society of Glastonbury
Digital Inquiry Group
Gilder Lehrman Institute for American History
iCivics
Library of Congress
The National Archives
The Smithsonian Institution Learning Lab
TeachingHistory.org
Who Built America?
World Affairs Council
National Geographic
