The "Anti-Tobacco Media Blitz" (ATMB), a social-norms marketing program, was utilized for tobacco prevention with middle and high school students. University students assisted middle and high school students with the implementation of this campaign, which included a variety of media. Students worked in teams to design, develop, and evaluate tobacco-free messages through posters, radio, television, and peer-led activities. Evaluation of the campaign was constant and included assessment of message retention and demonstration of positive behaviors. This article discusses the procedures of this project, the five-step social norms marketing model, with emphasis on the student-centered evaluation and results. (Contains 1 figure and 6 tables.)