Four Directions Institute: Otoe
- Tribal profile, timeline, and links.
- http://www.fourdir.com/otoe.htm

Otoe-Missouria Genealogy
- Genealogy database of ancestors and descendants based on the 1891-1906 allotment schedules for the Otoe-Missouria tribe of Oklahoma.
- http://native.brokenclaw.net/otoe/om_genealogy.html

Otoe-Missouria Tribe of Oklahoma
- Official website of the Tribe, designed primarily to aid members of the tribe and to assist visitors to the area.
- http://www.omtribe.org

Constitution of the Otoe-Missouria
- Transcript of the tribal constitution, ratified on 4 February, 1984, provided by the University of Oklahoma Law Center.
- http://thorpe.ou.edu/constitution/otoecons.html

Lewis and Clark in Nebraska
- Excerpt from Andreas' History of Nebraska, published in 1882, relates the first official contact with the Otoes and other tribes along the Missouri River.
- http://www.kancoll.org/books/andreas_ne/history/erlyhst-p5.html

Yahoo! Groups : IowayOtoeClub
- Discussion group for members of the Ioway and Otoe Tribes [requires Yahoo! registration].
- http://groups.yahoo.com/group/iowayotoeclub/

Treaty with the Oto and Missouri
- March 15, 1854, treaty pertaining to lands ceded to U.S., reproduced from "Indian Affairs: Laws and Treaties" published in 1904.
- http://digital.library.okstate.edu/kappler/Vol2/treaties/oto0608.htm

Ioway and Otoe Tribal Genealogy
- An overview of Ioway heritage as a rich mixture of Otoe, Omaha, Missouria, and other tribes, originating as moundbuilders of the upper Mississippi Valley.
- http://ioway.nativeweb.org/genealogy/overview.htm

Passing of Elders
- A tribute to Truman W. Dailey, the "last fluent speaker" of the Otoe-Missouria language, who passed away on December 16, 1996, at the age of 98.
- http://www.dickshovel.com/elders.html#Truman

Annette Arkeketa
- Profile of the Missouria-Otoe/Muscogee poet with links to her work.
- http://www.hanksville.org/storytellers/annette/

Otoe: Sample Entry
- Alan H. Hartley's mock-up of how "Otoe" would appear in the Oxford English Dictionary, with variant spellings and historical citations.
- http://www.d.umn.edu/~ahartley/OTOE.html

Anna Lee Walters
- Profile of the Pawnee/Otoe-Missouria author with links to her work.
- http://www.hanksville.org/storytellers/ALWalters/

Native American History
- Collection of original articles with an emphasis on the history of the Otoe tribe, their way of life, and where they are today.
- http://www.suite101.com/welcome.cfm/history_oto_tribe