I’ve started digging through Google Scholar results, so here is the best article I have found so far: Exploring the Virtual Classroom: What Students Need to Know (and Teachers Should Consider). Definitely recommended for finding out what exactly learners need to benefit from the virtual classroom. According to the researcher, Garry Falloon, the impact of student ‘knowledge’ on the quality of their learning experience is considerable. The learners should have technical knowledge (how to use the conferencing software), procedural knowledge (what conventions of the classroom should be observed) and operational knowledge (how to use the available communication tools). Without it, it’s harder for them to transfer their face-to-face experience to the online environment. Definitely something to consider!