This Online E-Commerce Management Course from International Open Academy, originally $99, is now $14. We couldn't find this class anywhere else, but similar ones start at $20. The class covers everything you need to know about e-commerce management, from signing up, like setting up your store, catching the attention of customers, and getting positive reviews. The course also covers marketing, promotion, and how to increase sales through the effective use of social media. Sales tax is charged in most states.