Open educational resources (OER) provide several benefits: they allow free access to educational materials from respected institutions; enable improving course curriculums by comparing OER content; and give creators more exposure and reputation by sharing content worldwide. OER also offer opportunities for lifelong learning through self-paced study or refreshing past academic experiences. However, OER also face challenges, such as ensuring high quality when some sites are unregulated; preventing entire courses from being used without modification by for-profit programs; and maintaining and monitoring content long-term.