Fulk’s research interests communication and knowledge management, information technology for strategic alliances, and social aspects of knowledge and distributed intelligence. A series of recent projects sponsored by three grants from the National Science Foundation examines how communication and information systems are employed to foster collaboration and knowledge distribution within and between organizations. A recently completed research project sponsored by the Annenberg Center for Communication examines the development of new "virtual" organizational forms for global competition.

Her publications include Policing Hawthorne (2001, with Gregory Patton and Peter Monge), Shaping Organizational Form: Communication, Connection and Community (1999, with Gerardine DeSanctis), and Organizations and Communication Technology (1990, with Charles Steinfield), which won the best book award from the National Communication Association in 1990. Recent articles on organizations and communication technology have appeared in Human Relations, Communication Theory and Organization Science, and an award-winning article appeared in Academy of Management Journal.

She has served on the Board of Governors of Academy of Management, where she also was elected Fellow. She served as Deputy Dean of the Academy of Management Fellows from 1999 to 2002.