The Center for the Study and Prevention of Violence (CSPV) at the University of Colorado at Boulder identified 11 prevention and intervention programs that met a strict scientific standard of program effectiveness. This bulletin describes the CSPV's selection criteria in choosing model programs (e.g., evidence of deterrent effect when using a strong research design, sustained effects, multiple site replication, analysis of mediating factors, and cost versus benefits). The 11 models are highlighted and include such programs as Prenatal and Infancy Home Visitation by Nurses (which sends nurses to the homes of low-income, first time mothers to teach parenting skills and promote health); Promoting Alternative Thinking Strategies (a school-based intervention that works on self-control, emotional understanding, self-esteem, relationships, and interpersonal problem solving); and the Bullying Prevention Program (which is designed to reduce bullying among elementary and middle school students by reducing opportunities and rewards for bullying behavior). The bulletin discusses program replication, evaluation, planning, and funding and notes lessons learned in such areas as administrative tensions, professional insecurities, and intra-agency and interagency links. It describes such implementation strengths as administrative support, program champions, staff, and technical assistance providers. (SM)