The Internet has numerous valuable resources for parents. Here are just a few:
Time to Act - How to Tell if Your Teen is Using Drugs and Taking Action to Intervene
http://timetoact.drugfree.org/
Parenting by Assets: Search Institute
Teen Alcohol and Addiction Recovery http://www.teenrehab.org
Great article on the consequences of Drunk Driving http://www.addiction411.com/drunk-driving/
Mental Health Treatment http://mentalhealthtreatment.net