<p>I’ve recently received a reply from an MIT admissions counselor. He said that courses (MOOCs) completed on these websites can be placed in the “additional coursework” section. Exact wording of email "We think that edX, Coursera, Udacity, etc. can be great options for advanced, talented students. We would be excited to see students who have successfully completed these advanced, rigorous courses.</p>
<p>At present, the freshman application does not have a separate field or area for such courses. The courses could be listed in the Part 2 in the Self-reported Coursework section or in the Optional text box."</p>
<p>Hope this helps. There is not much information out there because these sites are very new</p>