This is a resource directory for professionals who work with young adolescents (10- to 15-year-olds). It is a multidisciplinary list of organizations, publications, and readings to help professionals in their research and practice. Although the directory is not meant to be all-inclusive, an attempt has been made to include the major networks, clearinghouses, and information sources in key subject areas. The directory is divided into seven sections: General/Advocacy; Community Services/Youth Services; Education; Health/Sexuality; Parenting/Family Services; Youth Participation; and U.S. Government Information Clearinghouses. Organizations with more than one scope of interest are placed according to their primary focus. Included in each section are major resource organizations and some of their publications, other publications of interest, and a bibliography of additional reading. Also included in the directory are a subject index and an index of organizations. (CMG)