hn.academy - Collects, ranks, and showcases the online courses recommended by Hacker News users. Open edX - Code that powers edX. Includes the LMS (student-facing, delivering courseware), and Studio (course authoring) components. Coursera - Build Skills with Online Courses from Top Institutions. Meta Course - Course for creating great courses! We learn how to create learning structures specifically for the ideas and skills most interesting to us. Disco - Learn on the go with audio courses. Instil - Platform for creating and monetising live classes. Classpert - Find and compare courses from multiple providers. khan-dl - Khan Academy Course Downloader. (HN) udemy-dl - Cross-platform python based utility to download courses from Udemy for personal offline use. Slip - Build and sell interactive programming courses. (HN) (GitHub) Udemy - Online Courses - Learn Anything, On Your Schedule. (HN)