About these children who comprised 2% of live births in the 1970s. They appeared to be girls at birth, but developed muscles, testes, and a penis at puberty.

This site will help parents and patients understand intersexuality and the challenges that accompany syndromes of "abnormal" sex differentiation. From the Johns Hopkins Children's Center.

Discussion of the types and causes of intersexuality.

Information about this UK umbrella group of organizations working together to improve services for people with genetic disorders. A notice board, education, services and links are provided.

Information about Klinefelter Syndrome, when it was first discovered, the common characteristics, and treatment.

Registered UK charity that sponsors research and education on gender identity.

Includes such bitterly funny entries as "Ambiguous Genitalia: Genitalia that refuse to declare their sex to doctors--no doubt on the principle that under interrogation by the enemy you should give only name, rank, and serial number."

Why it happens, what it is, what to do; see photos of hypospadias and contact others with it. Discusses androgen insensitivity, testicular feminization syndrome, development, and even ISNA.

Information and support for intersexuals and parents of intersexuals. Articles on genital surgery, gender orientation, sexual identity, and message board.

The biology of sex is being hotly debated, as parents, doctors and researchers reevaluate what it means to be male and female. This is an article about 'gender reinforcement' surgery by a subscriber to the US branch of the AIS Support Group.

A long article by Emily Nussbaum in the current issue of Lingua Franca details the rise of the increasingly successful intersex social justice movement, its alliances with humanists and social scientists in the academy, and growing pockets of change within the medical community.

Contains support, information on hormone replacement therapy for folks with Turner's, health issues for folks with TS, and personal stories.

A listserv for people with Klinefelter's Syndrome, or XXY chromosomes. Their mission is early diagnosis, education, and to make the world a better place for their XXY brothers.