The Austrlaian Computer Society's Computer Professional Education Program is based on the Model of Online Learning developed by Gilly Salmon. This powerful and personal approach to e-learning is detailed in her book "E-Moderating: the Key to Teaching and Learning Online". The key to this technique is simple to understand but difficult to apply: guide the student, don't "teach" at them. I believe this technique can also be applied to research supervision and will be discussing this in a presentation at the 2010 ACT MoodlePosium, at the Austrlaian National University in Canberra, 7 October 2010.
I read the hardback second edition 2003 of E-Moderating. While the techniques themselves will stand the test of time, the e-learning software examples in the book are a little dated. It might be best to get the 2007 Kindle Edition or wait for the new paperback due June 2011.