From MIT comes a free introductory undergraduate course on Microeconomics. Taught by Professor Jonathan Gruber, the 25-lecture course covers the fundamentals of microeconomics, including “supply and demand, market equilibrium, consumer theory, production and the behavior of firms, monopoly, oligopoly, welfare economics, public goods, and externalities.” Watch the lectures above (or on YouTube). Find the syllabus and lectures notes on MIT’s site. A MOOC version of the same course can be found on edX. Coursera also offers a host of other econ courses.
Principles...