The document discusses "trade secrets" for effective online teaching based on an instructor's experience. It outlines six secrets: 1) Put out a welcoming environment and over-communicate with students; 2) Create a consistent weekly course structure; 3) Manage students' expectations; 4) Use introductory videos each week and vary activities; 5) Retain all course materials; 6) Express care for students in writing. Research cited found online and blended learning can be as or more effective than traditional teaching when properly implemented.