Published under the auspices of the International Communication Association, this volume, the fifth in the Communication Yearbook series, provides an annual overview and synthesis of developments in the science of communication. Disciplinary reviews and commentaries on general topics in all subdivisions of communication accompany analyses of developments in communication theory and research in specialized areas within the communication sciences. Among the areas covered are information systems, interpersonal communication, political communication, instructional communication, health communication, mass communication, organizational communication, and intercul-tural communication. Reviews and commentaries are commissioned by the editor, and divisional overviews are prepared by scholars in each area of specialization. Articles presenting current research are selected through competitive judging processes within each interest area.