This document reviews research on using technology to support collaborative learning in higher education. It focuses on studies that use internet-based technologies and analyze social interaction. The review provides six observations and recommendations regarding methodology, empirical evidence, and gaps in the research. It calls for more detailed descriptions of research methods and participants to aid replication. It also recommends focusing less on comparing technology-supported collaboration to face-to-face and more on what is uniquely enabled by technology, like group cognition and collaborative knowledge building.