7 Ways to Reduce the Cost of an Online Degree - Jordan Friedman, US News

Textbook-free online courses. How these online classes work typically depends on the instructor and the course design. Uranis says some instructors may curate a list of readings to replace the need for textbooks in a class. Some online programs depend largely on Open Educational Resources, or OERs, which are free course materials that universities make available to the public. https://www.usnews.com/higher-education/online-education/articles/2018-11-01/7-ways-to-reduce-the-cost-of-an-online-degree