Most colleges and universities have an office on campus that can help students who have drug and alcohol problems. Links are on their web sites). Many of the research groups are heavily academic and inaccessible to the general public. These are two that are.
National Center on Addiction and Substance Abuse at Columbia University (CASA)
New York, NY
CASA Columbia is the only national organization that studies the use of alcohol, cigarettes, marijuana and other drugs across a broad swath of the American population. Its National Survey of American Attitudes on Substance Abuse XIII: Teens and Parents comes out every August and offers valuable information on what helps prevent and encourage alcohol and drug abuse within families.
University of California at Berkeley, Alcohol Research Group
Established in 1959, the Public Health Institute is one of 18 academic research groups funded by the federal government that studies the affects of alcohol on people of all ages. It publishes information that can be of use to parents.
One product is Don't Panic! A Parent's Guide to Understanding and Preventing Alcohol and Drug Abuse which details how to raise children in a world where they confront drugs —legal or illegal — every day.