National Institutes of Health
National Institutes of Health: Household Products Database
Everything you ever wanted to know about every household product available, from battery disposal to detergent and glue.
Other
Household Hazardous Waste
This site contains great information about a number of household hazardous wastes and suggested methods of disposal.
Other
King County: Household Hazardous Waste
Characteristics of hazardous waste products are provided on this site. Alternatives to use which will not harm the environment are also explained.