L.L. Green Upholstery and Design
- Offers leather products, specializing in pillows and custom motorcycle seats. Includes store profile, project photographs and contact information.
- http://www.llgreenleather.com/

City-Data.com: Clarksville, Iowa
- Profiles housing, population demographics, jobs, weather and climate tables. Contains a list of area hospitals, schools, airports, radio and TV broadcast stations, photograph and maps.
- http://www.city-data.com/city/Clarksville-Iowa.html

Clarksville Community School District
- Provides a profile, calendar, announcements, information about extra-curricular activities and links to the buildings.
- http://www.clarksville.k12.ia.us/

Wikipedia: Clarksville, Iowa
- Encyclopedia article features geography and demographics of this community in Butler County.
- http://en.wikipedia.org/wiki/Clarksville,_Iowa

Clarksville, Iowa
- Includes contact information for government offices, directory of businesses, history, and calendar of events.
- http://www.butler-bremer.com/web/jeffkolb/