Open course is a service similar to Kahn Academy. However, videos can be posted a variety of users who are experts in their particular fields. These instructs can also upload instructional material for each lecture they upload. As a monetization strategy, lock all lectures except for the first in each course. Users can watch the introduction lecture and then pay a small fee using the Venmo api to access additional video content and instructional materials. Each course also features a discussion page where any member (non-paying or paying) can ask questions and learn more! We also provide a search interface for you to find courses that you love.