This paper investigates the roles of formal and informal networks and perceived compatibility with task/ work in World Wide Web (WWW) diffusion among Indonesian bank employees. In doing so the paper also provides insights into various factors that influence the international information system research processes. It is anticipated that these factors (or some variations) will be important determinants of the success of any international IS research. A structural equation model is first developed based on an extensive literature review for the WWW diffusion. Data is collected via a questionnaire based survey in Indonesian banks following the process of international IS research. The results show that the informal network and compatibility are significant factors of WWW diffusion among the Indonesian banking employees, but the formal network is not. Possible explanations of the results are provided from cultural perspectives.