The most powerful experiences are those in which interaction occurs throughout the group instead of between one participant and the facilitator within a group setting--Palloff, R. M., & Pratt, K. (2007). Building Online Learning Communities: Effective Strategies for the Virtual Classroom. San Francisco, CA: Jossey-Bass.
This video offers a quick rundown of how to set up group projects for the online classroom.
Organizing group activities can be difficult when students are all over the globe. This article by Mark Lieberman discusses why group work is worth the effort.
In this video by Ed Tech Du Jour, Dr. Melissa Kaulbach and James Bryan Smith address student anxiety with group projects and how to encourage and coach students to success.
This article at Faculty Focus outlines guidelines to help group assignments operate more smoothly for both students and instructor.
This article at Illinois Online looks at group work from the student's point of view and describes what students can do to make sure everyone pitches in for good results.
This image from Navitas outlines as series of considerations for instructors looking to create effective group projects.