Here is the posting of roles and educator and colearners in an online course on FB, a previous post on the research into the roles of educators, and role of teachers here.
Stephen shares his perspective here
This Fifty-One Competencies for Online Instruction by Theodore C. Smith provides some ideas on competencies for online instruction, especially for new online instructors.
What are the competencies or capabilities relating to educators and colearners in an online course such as PLENK?
Learner Weblog 