CERES - San Bernardino County: An index to environmental information for the county. Extensive reference includes road, weather, and flood conditions, demographics, historical resources, maps.
Counting California: San Bernardino County: California Digital Library's Demographic information on the county.
County of San Bernardino: Official site. Provides directory of departments, information for visitors, trivia quiz, job openings, and online property tax payments.
National Register of Historical Places: The National Park Services list of official historical buildings, districts and archeological sites in San Bernardino County.
San Bernardino Valley Amateur Astronomers: Club news, calendar, activities, and other information.