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

» Weather Underground: Ottosen, Iowa    Current conditions, five-day forecast, local radar and satellite.    http://www.wunderground.com/cgi-bin/findweather/getForecast?query=ottosen

» Wikipedia: Ottosen, Iowa    Encyclopedia article covers geography and demographics of this community in Humboldt County.    http://en.wikipedia.org/wiki/Ottosen,_Iowa