- American Nurses Associationwww.nursingworld.org
- American Staffing Associationwww.americanstaffing.net
- International Council of Nurseswww.icn.ch
- National Institute of Healthwww.nih.gov
- US Bureau of Labor Statisticswww.bls.gov
- US Department of Health & Human Serviceswww.hhs.gov
- US Department of Laborwww.dol.gov
