Sustainability has become an increasingly important issue for IS researchers. Yet, still emerging, IS research in this field seems confused for many reasons. As a result, and despite previous contributions, we currently lack a comprehensive and longitudinal understanding of current research on sustainability in IS. Based on an inductive approach using a thematic analysis method, we review 134 works on sustainability in IS over a 40-year period to clarify the concept of sustainability in the IS field. The originality of our research lies in the fact that we focus on the point of view of IS researchers without using a predefined definition or framework of sustainability. We thus provide a picture of the IS sustainability research landscape as appropriated by researchers, and identify key research areas, perspectives, and foci over the past 40 years. We contribute to the advancement of IS research by describing the main trends and their positive and debatable aspects.