OC Waste & Recycling Information: OC Waste & Recycling runs this site that is loaded with great information not only on landfills, but also trash pickup for your local area and even household hazardous waste dumping locations.
Firewise: This site is full of great fire safety information. It focuses mostly on ways to protect those homes located near the wildland/urban interface areas. It also includes lists of publications, videos, and downloads that are quite helpful to the homeowner.
National Fire Protection Association: This is another fire safety site that helps to identify potential hazards in the home. There are also some fun games and safety tips for kids.
California Native Plant Society (CNPS): The CNPS hosts this site that is loaded with all sorts of great information on the native plants of California. It is colorful and interesting, with great photographs and educational information for kids.
Orange County Vector Control District: "A vector is any insect or arthropod, rodent or other animal of public health significance capable of harboring or transmitting the causative agent s of human disease, or capable of causing human discomfort or injury."