Swim Sumner County
- Promotes swimming in the area by providing information on clubs, teams, events, lessons, and accomplishments of local swimmers.
- http://www.swimsumnercounty.com

Tennessee United Soccer Club
- Soccer program for youth between the ages of U9 and U19.
- http://www.tnunited.com/

Sumner County Convention and Visitors Bureau
- Visitors' guide to the county, featuring historic tourism (fort sites and historic homes on the "path of the longhunter") and outdoor recreation. Includes events calendar, directory of attractions, and lodging/camping directory.
- http://www.sumnercountytourism.com

Sumner County, Tennessee
- Government site with community information and links for Sumner County, including Gallatin, Goodlettsville, Hendersonville, Millersville, Portland, Westmoreland, and White House.
- http://www.sumnertn.org/

Diane Black, State Representative
- Information about the legislature, a questionnaire on state issues, links to pending bills, and legislative news for the 45th district (including Hendersonville and Gallatin).
- http://www.dianeblack.org/