Information programs of seven Federal agencies were studied in order to: determine how and why extra-library information storage, analysis, and retrieval systems have been established; determine the place of information systems within the total structure; determine functional, organizational, and operational relationships; identify the common and unique functions of libraries and extra-library systems; provide recommendations, guidance, and conclusions. The agencies studied are National Aeronautics and Space Administration, Division of Scientific and Technical Information; National Standard Reference Data System; National Clearinghouse for Mental Health Information; Pesticides Information Center of the National Agriculture Library; Plastics Technical Evaluation Center of the Picatinny Arsenal; and Redstone Scientific Information Center.