Attention Deficit Disorder Association (ADDA) is a non-profit association for those with ADD and has been around since 1989. Very friendly site which offers a wide range of assistance for those with ADD. For more information, read their newsletter here: http://www.add.org/e-newsletters/july07.html
—
Children and Adults with Attention Deficit/Hyperactivity Disorder (CHADD) is a non-profit organization with the purpose of assisting those with ADD/HD. Very comprehensive website with many available services and if you become a member you will have access to their community forum. Chad was founded in 1987. For more information read their Mission and History here: http://www.chadd.org/Content/CHADD/AboutCHADD/Mission/default.htm
—
The National Resource Center on AD/HD (NRC): A Program of CHADD (Children and Adults with Attention-Deficit/Hyperactivity Disorder), was established in 2002 to be the national clearinghouse for the latest evidence-based information on AD/HD. The NRC provides comprehensive information and support to individuals with AD/HD, their families and friends, and the professionals involved in their lives. Read more about here: http://help4adhd.org/aboutus.cfm
—
The Foundation’s mission is to help every child, adolescent and young adult with Attention Deficit Hyperactivity Disorder (ADD ADHD) to fully realize their own potential, personal vision, and passion. (from site)