The intent of this study is to explore how WAP (wireless application protocol) technology mediates online discussions. The focus of this research is on the implications of WAP technology for online discussions, and the types of discussion topics that are most suitable for WAP-based discussions and the finding of the combination of WAP- and WEB-based discussions. Multiple methods of inquiry were employed in this study. A survey, face-to-face interviews, and focus group interviews were conducted to find out participants' perceptions of using the WAP-enabled mobile phone as a communication tool, and how such a tool has facilitated or impeded their learning processes technically and cognitively. A content analysis was made on the postings generated from WAP- and WEB-based forums. This study is one of the very first attempts at investigating the use of WAP-enabled mobile phones for online discussions in one of the higher education institutions in Singapore. By exploring the potential of this newly developed technology, this study can provide guidelines to educators as they reflect on the way online discussions can be integrated into a course and lay a foundation for future development of a mobile online learning environment.