41 Developmental Assets or "the building blocks of healthy development that help young people grow up healthy, caring, young adults" was developed by Project Cornerstore of Santa Clara County, CA.

Youth Development Resource Directory provides resources and services related to the implementation of youth development principles, such as assessment tools, trainings, and practice materials.

California Adolescent Nutrition Fitness (CANFit) Program compiled a list of organizations that offer trainings in physical activity for youth providers.

Community Network for Youth Development (CNYD) is a San Francisco-based organization that offers support, training, and capacity building resources to youth-serving organizations and programs. CNYD's goal is to improve the quality of programs for youth by supporting and strengthening the people and agencies who work with them.

Youth Development Guide: Engaging Young People in After School Programming was published by the Community Network for Youth Development in San Francisco.  It provides specific and practical advice on strengthening individual staff practices and organizational policies in after school programs to support learning and young people's healthy development. Click here to order a copy of this guide.