Mormon History Association - http://www.mhahome.org

Utah State Historical Society - http://history.utah.gov

Church History - http://lds.org/churchhistory

The Association for Mormon Letters - http://www.aml-online.org

Missouri Mormon Frontier Foundation - http://www.mmff.net

BYU Studies - http://byustudies.byu.edu

The Official Site of The Church of Jesus Christ of Latter-day Saints - http://www.lds.org

FARMS Online
(The Foundation for Ancient Research and Mormon Studies) - http://farms.byu.edu

John Whitmer Historical Association - http://www.jwha.info

British LDS History Society - http://www.ldshistory.org

Mormon Studies - http://mormonstudies.byu.edu