The Research and Development Exchange (RDx) is a network of eight regional educational laboratories, one university-based research and development center, and a consortium of seven state education agencies working to support state and local school improvement efforts. The RDx has four goals, designed to support dissemination and school improvement efforts: (1) to provide information, technical assistance, and/or training; (2) to promote the use of research and development outcomes; (3) to promote coordination among programs; and (4) to increase shared understanding and use of information about client needs in order to influence planning of research and development efforts. The RDx includes eight regional exchanges (Appalachia Educational Laboratory, CEMREL, Mid-continent Regional Educational Laboratory, Northeast Regional Exchange, Northwest Regional Educational Laboratory (NWREL), Research for Better Schools, Southwest Educational Development Laboratory, and SWRL Educational Research and Development Laboratory), four central support services (Dissemination Support Services at NWREL; Research and Development Interpretation Service at CEMREL; Resource and Referral Service at the National Center for Research in Vocational Education; and System Support Service at the Far West Laboratory for Educational Research and Development), and the Coordinating Committee. (BW)