The course is open in the sense that you can go ahead and take the course without paying for it
you might pay for getting credit from the institution, but you are not paying for participating in the course.
It’s also open in the sense that the work done in the course is shared between all the people taking it. The material put together by the facilitators, the work done by the participants it’s all negotiated in the open. You get to keep your work and everyone else gets to learn from it.” (Steve Mackenzie in http://learnadoodledastic.blogspot.nl/2013/04/are-you-participating-in-mooc-or.html citing Dave Cormier)
This third point is one of the reasons why I try to store comments and work in this blog, even if I did publish the work in other places. I did publish my Make in the Make-Bank of #clmooc (http://blog.nwp.org/clmooc/2013/06/17/make-your-avatar-as-an-introduction-in-clmooc/) and did post in this blog https://connectiv.wordpress.com/2013/06/17/make-your-avatar-as-an-introduction-in-clmooc/
This blog is intended to be a history of my work in MOOCS. It is a collection. And because work published in some MOOC-websites is not saved forever, I prefer to copy some work to this blog. You and me as a reader could read and use it even if MOOS repositories with comments and work are closed down .