In collaborative online learning environments, when two or more students are working together, a core part of learning takes place through conversation. While the online environment may exist solely as a way to bring geographically separated students together, it may also have a more important and active supporting role; for example, actually participating in student conversations, assessing the quality of student conversations, or making suggestions to the students about their conversations. Many of my current funded projects are actively making progress towards the goal of effective, dynamic support for collaborative learning. This effort builds on the linguistic analysis of collaboration work by enabling conversational support to be triggered based on an awareness of the state of the collaboration.
You can read more about the findings from this strand of research here and impact here.