The document discusses the changing roles of online instructors. It identifies four main roles according to Downes: instructor, social director, program manager, and technician. It also discusses five roles identified by Sistek-Chandler and Chandler: orchestral director, psycho-social director, online instructor co-learner, coach, and mentor of applied learning. The key responsibilities of online instructors include establishing social presence, building relationships among students and instructors, and facilitating an interactive learning community. Encouraging engagement and interactivity through techniques like synchronous discussions is important.