Know the opportunities and limitations of the delivery technology that you are using. Have contingency plans when you are teaching with technology. Be prepared for the worst. Students never learn from the technology. They learn from the way instructors communicate through the technology.
Technology can never replace the value of a live instructor.
You were never 18 in 1999. Never embarrass a student in any way. Instructors are empowered to change the lives of their students. Helping students to identify, clarify, and explore alternative values may be more important than learning facts. Making students remember unconnected facts is irrelevant.