Research is essential for the development of Internet career assessment, yet little research has been published to date. This paper describes several different data collection approaches suitable for the Internet, including survey research, case studies, and participant observation. Areas of needed research are identified including the evaluation of measures and interventions on the Internet and recruiting sites and the examination of other career-related Internet phenomena, such as chat rooms and message boards. Aspects of Internet career research are described in the context of intervention models and research questions that may differ from those of traditional research. Finally, challenges researchers may encounter are presented, such as the ease and rapidity of site changes and the difficulties associated with funding site research and development.