With the increasing globalization of world economy and intensive competition, the role of groups and teams in organizations and businesses entails greater significance. The current business environment is characterized by the use of teams working in distributed environments to cope with uncertainty, change, ambiguous problem definitions, and rapidly changing information. Decisions in organizations are more often made by groups of employees, who may have diverse cultural background. Consequently, culture diversity becomes a growing phenomenon in American business and organizations. This situation gets further complicated when group tasks involve cross-cultural project teams whose members may perceive group meetings differently from the traditional North American concepts of group behavior. Many management and organization practices developed in western countries have failed when introduced to other cultures. Such a phenomenon is a major force driving scholars and practitioners to question the universal applicability of existing theories and practices in group support systems research. We are interested in investigating the cultural effect on group outcomes in both face-to-face environment and computer-mediated communication environment.