There are many free online courses from universities around the world such as those offered on platforms like Coursera and edX . Class Central enables courses to be searched by keyword or browse by subject, university, or provider, and Class Central also points out notable and popular courses. Each course listing provides a descriptive overview, links to commonly asked questions about the course provider, a list of related courses, and reviews written by people who have taken the course. Users can choose to register for a free Class Central account to keep track of courses they’re interested in. While not every course cataloged by Class Central is free, many (if not most) of them are, and those that are not are clearly marked.