An anonymous reader writes "IEEE Spectrum reports that Stanford's CS221 course 'Introduction to Artificial Intelligence' will be offered online for free. Anyone can sign up and take the course, along with several hundred Stanford undergrads. The instructors are Sebastian Thrun, known for his self-driving cars, and Peter Norvig, director of research at Google. Online students will actually have to do all the same work as the Stanford students. There will be at least 10 hours per week of studying, along with weekly graded homework assignments and midterm and final exams. The instructors, who will be available to answer questions, will issue a certificate for those who complete the course, along with a final grade that can be compared to the grades of the Stanford students. The course, which will last 10 weeks, starts on October 2nd, and online enrollment is now open." When asked how they would deal with ten thousand students, Professor Thrun replied: "We will use something akin to Google Moderator to make sure Peter and I answer the most pressing questions. Our hypothesis is that even in a class of 10,000, there will only be a fixed number of really interesting questions (like 15 per week). There exist tools to find them."