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• SIECUS The Sexuality Information and Education Council of the U.S. (SIECUS) is a national, nonprofit organization which affirms that sexuality is a natural and healthy part of living. Incorporated in 1964, SIECUS develops, collects, and disseminates information, promotes comprehensive education about sexuality, and advocates the right of individuals to make responsible sexual choices.
• Child Sexual Development by Loretta Haroian, PH.D
• The Sex Education Forum, which is based at the National Children's Bureau, is the national authority on sex and relationships education in England.
• The Sex Education Coalition is composed of educators, health care professionals, and legislators, dedicated to providing information and supporting informed discussion concerning sexuality education.
• Sex Education Web Cycle from the Society for Human Sexuality
• Scarleteen: Site for teens
• The National Sexuality Resource Center helps create new dialogues between the public, researchers and community advocates, which strengthen informed responses to critical sexual and social issues. By disseminating accurate information and evidence-based research on sexual health, education and rights, NSRC promotes social justice and enhances the quality of life within the United States.