Janet: Your answer to this question does not explore the depth of the Question. An Instructor's availability, and turnaround time for feedback are both important elements for successful online learning; however, providing the kinds of information you mentioned is inadequate to support your understanding of your students. Here's a situation to consider. I am playing the role of one of your students. You have given me you contact information and advised me that I can contact you anytime. If I choose not to contact you, how will you learn about my fears, strengths, weaknesses etc?