A survey of the Fortune 500 corporations was conducted to ascertain the pervasiveness and perceived impact of five electronic communication technologies (electronic mail, videotex, interactive computers, video teleconferencing, and word processing). Ninety-four corporations responded to a 53-item questionnaire and follow-up survey. Analysis of the results indicated that word processing was the most pervasive technology used, followed, in order, by interactive computers, electronic mail, videotex, and video teleconferencing. Secretaries were the primary users of word processing, while middle managers and technical specialists were the main users of interactive computers, videotex, and electronic mail. Other findings showed that the growth in electronic communication technologies has, generally speaking, effected a slight to moderate change in employee productivity, a slight increase in employee job satisfaction, no change in employee commitment to the companies, a slight to moderate increase in corporate information dissemination capability, and a moderate increase in workload capacity of company offices. In addition, it was found that while word processing has, generally speaking, made information processing faster in offices, it has not made those offices more reliant upon written communication. Finally, the findings revealed that there is some apprehension among employees in the offices surveyed about the rapid emergence of the technologies, specifically in terms of having to learn how to use them and of coping with the changes involved. (FL)