National Institute for Occupational Safety and Health (NIOSH) About this site: The National Institute for Occupational Safety and Health is the federal agency that researches workplace injuries and diseases, and makes recommendations on how to prevent them. The site has plenty reports on everything from indoor air quality to ergonomics and musculoskeletal disorders. Employers can also order publications and borrow training videos free of charge. http://www.cdc.gov/niosh/homepage.html   Pluses: A comprehensive site map means easy navigating.   Minuses: If you aren't a scientist, some of the more technical information in the databases is incomprehensible.   Best feature: An alphabetical topic index makes it easy to find what you're looking for at a glance.

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