Stephens County Fair and Expo Center
- Facilities, location and rental information.
- http://stcofair.com/

Simmons Center
- Community activities center housing the Jack A. Maurer convention center. General information, facility floor plan, schedule of events, recreation facilities, and event planning information. Requires shockwave flash.
- http://www.simmonscenter.com/

Duncan Convention and Tourism
- Events and museums, lakes parks and recreation, convention services, arts and culture, lodging, dining, and shopping, location and contact information. Frames page.
- http://www.duncanok.org/