This guide to educational information in the United States contains descriptions of more than 700 published and institutional information sources. Information about the location and use of information sources is also included. Four potential sources of information are discussed: printed materials which consolidate, update, or lead to further sources of information; libraries; organizations and government agencies; and special research or bibliographic services. Widely used materials found in public libraries, and popular educational research tools are omitted from this guide. (CH)