TeensHealth: Speech Problems - Find out the causes and treatments of common speech disorders, as well as how to help a friend or classmate cope with one. - http://www.kidshealth.org/teen/diseases_conditions/sight/speech_disorders.html
KidsHealth: Stuttering - Learn about stuttering and other speech problems. Includes why kids have speech problems, how they can be treated, and what it's like to live with one. - http://kidshealth.org/kid/health_problems/sight/stuttering.html