Here are a couple of thoughts about my experiences of being an eMentor. I think the most important thing about using online communication in a mentoring relationship is to make sure the person you are talking to understands what you are saying - that the method of communication you are using does not cause misunderstandings.
What are your experiences of using online communication? What are the downfalls? How would you manage the intricacies of being an eMentor?