Recent developments in Web technologies have enabled a rapid increase in computer-mediated information-seeking communications. This manuscript presents the dissertation research the author is undertaking, which will involve a discourse analysis of online chat reference dialogues. The goal of the study is to examine existing information seeking behavior models in the recent context of the computer-mediated communication (CMC), and to augment the theories by developing a dialogue model of information-seeking CMC. In doing so, the study will develop an annotation scheme by incorporating dialogue act analysis into the analysis of information behavior. The contribution of the study will be to inform the design of information retrieval systems that utilize the CMC as an information resource or incorporate interactive user interface.