If you're in Japan you not only have the choice of taking a class online, but you can also opt to view lectures on your cell phone! Cyber University as they call it, opened up in April and has just over 1800 students enrolled. Classes range from Chinese history, journalism, English lit, and more. The service only works on Softbank phones for now, but Cyber University is in talks to expand to more operators.
Japan, the country where you can earn your 4 year degree from a device that fits into your pocket. Amazing.