Protivin, Iowa
- Features an overview of the community and its history.
- http://howard-county.com/protivin/

Wikipedia: Protivin, Iowa
- Encyclopedia article covers history, demographics and geography of this community, host to annual weekend festival, Czech Days.
- http://en.wikipedia.org/wiki/Protivin,_Iowa

Fencl Oil Company
- Installs and services propane gas systems for residential, agricultural, and commercial customers. Includes staff photograph, list of products and safety tips.
- http://www.fencloil.com/

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

Trinity Catholic School
- Serves students from preschool through grade 6. Features the school's philosophy, a curriculum list, classroom pages, a newsletter, a monthly calendar, alumni news and a lunch menu.
- http://www.aea1.k12.ia.us/trinity/