INTERSEX
Intersex Society of North America
Bodies Like Ours: Support & information for people born with atypical genitalia
Transfeminism.org: Introduction to intersexuality & intersex activism
Organization Intersex International
Androgen Insensitivity Syndrome Support Group (AISSG)
AIS Support Group Australia, Inc.
Klinefelter Syndrome Support Group
Turner's Syndrome Society of the United States
XY Turners Genetic Mosaic Support Group