Who does "engineering for good"? Where and how do these engineers do good? How are these engineers trained to do this work? And what does it mean to be a successful one? Engineers have provided normative visions for societal change since the profession's conception. A minority of engineers have gone one step further, reimagining and reworking their "desire to help" to begin shaping the networks, programs, institutions and norms that define "engineering for good" today. Engineering for good-or the practice of prioritizing doing good over more traditional engineering urgencies such as cost, technological efficiency, and innovation-has steadily grown in popularity in the United States since the early 2000s. Engineers for good use a variety of language to describe their practice including humanitarian engineering, engineering for development, engineering and social justice, peace engineering, and engineering servicelearning. In addition to providing historical context for the growth of this movement, this paper provides an overview of the current academic, nonprofit, and corporate settings in which engineers are explicitly working to do good. This paper begins to reimagine the "community" as the engineers, scholars, practitioners, and networks that are actively involved in defining what engineering for good is by participating in the enterprise. By conducting a preliminary analysis of practitioner-oriented artifacts, networks, scholarship, and their geographies, this paper concludes with the call and an initial sketch for a broad, community-guided mapping of engineering for good's current landscape and potential visions for its futures.