Guthrie Chamber of Commerce

 http://www.guthrieok.com

Official Oklahoma Tourism Site

 http://www.travelok.com

Oklahoma Historical Society Sites and Museums

 http://www.okhistory.org/mas/maspage.htm

Oklahoma History Center

 http://www.okhc.us

Logan County Genealogical Society

 http://www.rootsweb.com/~oklcgs/

Oklahoma Museums Association

 http://www.okmuseums.org

Preservation Oklahoma

 http://www.preserveok.org