There is one more organization for gifted children i.e.
http://www.nagc.org/The National Association for gifted children is an organization in US for parents, teachers, educators and other professionals who unite to address the unique needs of children as well as for those children who may be able to develop their potential with appropriate educational experience.
The NAGC invest all of its resources to train teachers, encourage parents and educate administrators on how to develop and support gifted children.
