This question prompted me to wonder what compensation comes with teaching a MOOC. Most of these seem to be sponsored by universities, but my university doesn't offer them and neither did my PhD institution so I have no first-hand experience on the instructor-side.
Obviously, most participants do not pay for them (some do, I guess, but I have no idea how many and they're obviously paying much less than university tuition). So, it seems unlikely that teaching such courses pays for the instructors time.
Thus, I ask: does teaching these come with compensation of any kind? Salary/bonus? Teaching load reduction? Release from service? Teaching assistants for the courses? I'm interested in compensation either from one's university or from the MOOC provider (Coursera, Udacity, edX, etc.).