I signed up for Health Policy and the Affordable Care Act on Coursera. It looks to be a good overview of the current state of healthcare in the US. The course is eight weeks long and has a different focus each week. The instructor for the course is Dr. Ezekiel J. Emanuel from Penn.
The format is simple: there are several video lectures and reading assignments each week, with a message board for interacting with other students. It looks like there is a QA video session every week where the instructor answers questions posted on the message board.
I am just getting started with the class and watching the lectures. I will update as it moves along. Eight weeks goes by quickly!
Oh, did I mention that it is free?