There is a lot of good information about stuttering either on or linked to The Stuttering Home Page
For Teens from the Stuttering Foundation provides a major page devoted to Teens Who Stutter.
"Do You Stutter: Straight Talk for Teens." - a video
"Do You Stutter: A Guide For Teens" - to and for the teen who stutters. Written by seven leading speech pathologists who give practical advice to teens on coping with and overcoming their problems. Also available in Spanish. 80 pages.
A brochure by the Stuttering Foundation of America Turning Teens on to Therapy by William H. Perkins, reprinted from Do You Stutter: A Guide For Teens.
Tammy Bryant-McMillin is a speech therapist. She has put online a Stuttering Awareness Game to help learn facts about stuttering.
i stutter: what's next a site for teens who stutter created by 4th year Bachelor of Speech Pathology students (Jen Bourke, Simone Fraser, Suzi Josevski, Lisa Sedgley, Brooke Streatfeild and Mitzi Tuke) in the School of Human Communication Sciences at La Trobe University, Melbourne, Australia, under the supervision of Dr Susan Block and Mrs Fiona Ross