A place to go to to take the world's best courses online and for free. Watch videos, take quizzes, chat with classmates, and advance your knowledge and career all online. This is "a social entrepreneurship company that partners with the top universities in the world to offer courses online for anyone to take, for free. We envision a future where the top universities are educating not only thousands of students, but millions. Our technology enables the best professors to teach tens or hundreds of thousands of students."