National Institute of Mental Health – ADHDThe NIH sponsored website with info for on ADHD, testing, school accommodations, medications, behavioral therapy, and clinical trials.
National Resource Center on ADHDCHADD (National Children & Adult with ADHD-sponsored clearinghouse for science-based info about & Resources for ADHD.
Understood.orgLearning & attention issues. Empowers parents of kids 3 to 20 w/tools to succeed.