A website on women, children and HIV has been launched by The Francois-Xavier Bagnoud (FXB) Centre at the University of Medicine and Dentistry of New Jersey, and the University of California San Francisco's Centre for HIV Information. "Women, Children, and HIV" contains a comprehensive, Internet-based library of practically applicable materials on mother and child HIV infection including preventing mother-to-child HIV transmission (PMTCT), infant feeding, clinical care of women and children living with HIV infection, and the support of orphans. With the launch of this site, crucial information about these rapidly changing and complex fields is now available in one site.