Because successful communication is essential to learning in an online course, instructors and instructional designers need to foster a respectful, welcoming environment and to prepare for potential problems that can arise, such as cyber harassment, trolling, and flaming. In an email interview with Online Classroom, Steven T. Varela, senior instructional designer/lecturer with Instructional Support Services at the University of Texas–El Paso, offered advice on managing online communication to create and maintain an ethical learning environment.