This paper describes the functions and services of four federally-funded information dissemination networks--the Research and Development Exchange (RDx), the Educational Resources Information Center (ERIC), the National Diffusion Network (NDN), and the State Capacity Building Programs (SCBP)--and explains how each network interrelates within Appalachia Educational Laboratory's Regional Exchange in providing educational information to the community. Included are complete citations, descriptors, and abstracts of 21 ERIC documents and journal articles. (RBF)