Part IV of the Educational Media & Technology Yearbook provides an extensive annotated directory of associations and organizations in North America, specifically in the United States and Canada, that are related to the fields of learning, design, technology, and library and information science. The directory focuses on organizations that play a pivotal role in advancing education, promoting the use of media and technology, and fostering professional growth in these disciplines. These entities support professionals and institutions through resources, networking opportunities, publications, conferences, and various professional development programs.