From Citizendium, the Citizens' Compendium
- Please sort and annotate in a user-friendly manner and consider archiving the URLs behind the links you provide. See also related web sources.
- Encyclopedia of Oklahoma History and Culture - Published by the Oklahoma Historical Society and hosted online by Oklahoma State University
- Oklahoma City National Memorial and Museum
- Oklahoma Climatological Survey
- State of Oklahoma Government Homepage
- Oklahoma Almanac 2005-06
- Oklahoma County Metropolitan Library System - Good online collection of historical photographs, videos, and folklore