Avalon Service Center Inc.
- Sells and services new and used trailers, truck flatbeds, parts and accessories. Includes information request form and contacts.
- http://www.avalontrailers.com/

City-Data.com: Rickardsville, 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/Rickardsville-Iowa.html

Wikipedia: Rickardsville, Iowa
- Encyclopedia article presents geography and demographics of this community in Dubuque County.
- http://en.wikipedia.org/wiki/Rickardsville,_Iowa