This article examines the historical expansion and convergence of the fields of information behavior and human–computer interaction, primarily in terms of the philosophy underlying each field. Information behavior grew out of research in library service provision in the early 1900s, and human–computer interaction grew out of computer science and human factors engineering in the 1960s. While these two fields have had different origins, purposes, and discourses, in recent decades, they have begun to converge. In this article, we map this convergence and consider implications for the future of the information field. We conceptualize their scholarly paradigms as expanding circles, and we show that the circles of information behavior and human–computer interaction are expanding in terms of ontology, epistemology, and axiology—and moreover, they are beginning to overlap substantially. While the two fields continue to be largely separate in terms of scholarly discourses, we suggest that much could be gained by explicitly acknowledging their shared components. Some suggestions for this are discussed, and these are connected to the ongoing iSchool Movement.