"All of these MOOC platforms appear to justify their status by promoting curricula that are equivalent to campus-based courses, with a strong focus on content delivery and an emphasis on the rigor and formality of their assessment methods. However, some of the most interesting and innovative practices in online education have emerged by challenging these very ideas; loosening institutional control of learning outcomes and assessment criteria, shifting from a focus on content delivery to a foregrounding of process, community and learning networks, and working with more exploratory assessment methods - digital and multimodal assignments, peer assessment and group assignments, for example."
SRL-MOOC study - categories assigned to learners in Change11 that were emerging from their data analysis included 'lurkers'. More discussion on this in the context of xMOOCs or cMOOCs is given here.
Particularly for those scrambling to 'get in the game', from non-edtech backgrounds or non-education backgrounds, this brief list is useful. It doesn't raise any debate around the terms, simply states their 'accepted' meaning and usage.