Fifteen Minutes of Practice - A Must Try for Parents of Teens

From SAMHSA's Talk They Hear You Campaign - http://www.kognito.com/startthetalk/ 
For parents who would like to practice their skills before engaging their teens in the underage drinking conversation, this is the best site I've seen. It is an interactive coaching, practice and feedback experience where you help another parent talk to her son. It is set up so you can return multiple times to address different approaches to the conversation (in preparation for each your your conversations).