Encyclopedia of Oklahoma History & Culture http://digital.library.okstate.edu/encyclopedia/index.html

FamilySearch https://www.familysearch.org

Handbook of Texas Online http://www.tshaonline.org/handbook/online

Legends of America http://www.legendsofamerica.com/

Standing Rock tourism http://www.standingrocktourism.com

The Encyclopedia of Saskatchewan http://esask.uregina.ca/home.html

Www.American-Tribes.com http://amertribes.proboards.com