Across disciplines, researchers recognize that working together in a small group can be a challenging learning activity, particularly in an online course where group members meet remotely. This 2-year, design-based research study focused on improving group work in both online and blended sections of an undergraduate course for pre-service teachers. Surveys were completed by instructors (N = 15) and students (N = 361) at three different junctures during the course to learn about how technologies were used by students and instructors to support group work. Interviews were also conducted at the end of the term to gather in-depth descriptions about the types of technologies and how they were used by students and instructors to support group work. Findings indicated that students and instructors selected a combination of technologies, including institutionally supported and mainstream applications such as shared workspaces to coordinate, track, and monitor group progress. Students and instructors also described using communication technologies to manage group challenges related to scheduling, communicating, and integrating tasks into the project. Findings contribute to our understanding about how technologies were used to support process and product when working on a group assignment.