Coursera's Automata course is really good, but it's hard work. It's a six week course, and you'll spend around 10hrs per week if you do everything (and I'd rec

Coursera's Automata course is really good, but it's hard work. It's a six week course, and you'll spend around 10hrs per week if you do everything (and I'd recommend doing everything). Udacity's introduction to statistics, so far, has been really easy. From what I've seen so far, Udacity are aiming to be more inclusive "community college" level and Coursera are aiming for a true university level education.