This study surveyed five major national museums in Taiwan to explore visitors' use of wireless local area network (WLAN) and personal digital assistant (PDA) in museums, in order to find out key success factors in promoting the use of WLAN and PDA in museums. Methodologies include statistic tools and fuzzy analytic hierarchy process (FAHP). This study achieved two major findings as follows: (1) According to the statistic results of questionnaires, a majority of interviewees are more than willing to use internet service and PDA system provided by museums. Visitors' willingness is influenced by their education levels, types of exhibitions they are interested, frequencies of their museum visit and computer use. (2) According to expert interview results calculated through FAHP, content design, connectivity, and information guidance are identified as the three key success factors, in order of importance, for promoting the use of WLAN and PDA in museums. The conclusion of this study points out: marketing strategies of museums should be expanded to be experiential marketing of cultural industry. Museum exhibition in this internet age should provide innovative audio-visual presentations and leisure, entertainment functions to attract attention and promote local cultural features. Application and planning of wireless internet system should encourage visitors to take initiative in experiencing and learning. Providing dual purposes of learning and cultural tourism, museums not only will attract visitors to call again, but will also advance their status as local attraction.