If you look at marketing stategies that a in place online i.e.(Amozon, netflix, etc.) providing feedback is the staple to the success of companies understanding the wants and needs of the consumer. Feedback is vital to deliver content to students for them to be successful once they have successfully completed the course, training etc.. Keeping them engaged in course content can be difficult but, by providing feedback you get to know the students at a personal level, it also allows them to see that you as the instructor is making every effort to provide them with the best education possible.