Author of Information Ecologies: Using Technology with Heart, Nardi & O'Day, (MIT Press, 1998). Faculty member in the Department of Informatics in the Donald Bren School of Information and Computer Sciences at the University of California, Irvine. She is widely known among librarians - especially research, reference and digital librarians - for Chapter 7 of Information Ecologies, which focused on librarians as keystone species in information ecologies.
Nardi's book inspired the title of a UK conference Information Ecologies: the impact of new information 'species' hosted, inter alia, by the UK Office of Library Networking, now known by its acronym UKOLN, and led to a keynote address by Nardi at a 1998 Library of Congress Institute on Reference Service in a Digital Age.
Nardi's self-described theoretical orientation is "activity theory", a philosophical framework developed by the Russian psychologists Vygotsky, Luria, Leont'ev, and their students. "My interests are user interface design, collaborative work, computer-mediated communication, and theoretical approaches to technology design and evaluation." She is currently conducting a study of blogging.