Factors related to faculty willingness to participate in university-sponsored service programs were studied at five Ohio state universities. Of a random sample of 1,000 faculty members, 416 returned usable questionnaires. In addition to obtaining demographic data on respondents, information was gathered on the extent of faculty member's previous experience in service activities of specified kinds, aspects of service in relation to the institutions and faculty roles, and faculty members' views about the possible expansion of service programs. "External service programs" were defined as activities formally sponsored by some unit of the university and primarily including instruction or training; clinical and laboratory services; and research, consultation, and technical assistance. Respondents indicated their feelings toward expanding external service by the university, school or college, department, or by the individual faculty members. Multiple linear regression was used to identify the strongest predictors of faculty willingness to participate. Respondents tended to be favorable toward expanded service activity, but skeptical about rewards and recognition. Faculty women tended to be more positive than faculty men. A questionnaire, references, and a literature review are included. (SW)