V good overview article, mainly because it mentions, if not develops, implications and human requirements for each of the principles. Beneath it all: Excellent DE courses depend on excellent teachers.

This article explores excellence in web-based teaching. Drawing on the views of experts in the field and the perspective of their own years of experience, the authors compiled a list of 9 principles to provide direction in the search for online excellence. The principles include: the online world is a medium unto itself; sense of community and social presence are essential to online excellence; in the online world, content is a verb; great online courses are defined by teaching, not technology. The list is not intended to be an exclusive set of principles or a comprehensive guide to online teaching. Rather it is a collection of important ideas and suggestions for teaching excellence in the online world.

Promotional article on using a mindmap as a PLE hub.

A consideration of cognition in learning spaces.