A multidisciplinary, not-for-profit, professional association with an international membership of approximately 5,500 researchers, practitioners, and human development professionals. This site provides free access to some of the articles published in this journal.
From The Child Abuse Library Online (CALiO) of the National Children's Advocacy Center (NCAC), “full-text of publications that do not require fee or password. Many of the publications included in this collection were published by state and federal government agencies, and are in the public domain. Others were funded by foundations or other organizations for open access.”
A site "designed to provide the information and tools parents need to understand their unique child/children and to enable them to help each child develop into the successful human being they were meant to be." Has useful sections about Ages/Stages, Development, Health/Safety, Psychology, and more.