It continues to be the case that most of the actual eLearning/Edtech experts (i.e. people with education qualifications and an established track record in the edtech field) are on the cautious side of the MOOC debate.
Mike Caulfield (one of these experts) gives a overview of some of the concerns in a recent post, Creating the Education Death Star.
The damage that Coursera, EdX, Udacity and others have done to a decade of open education progress becomes more apparent by the day. In today’s installment, the kettle at SJSU comes to a full boil, with the faculty association there joining the Philosophy department in expressing opposition, not to open education, but to the badly deformed version of it that CourdacityX has produced.
If you are interested in delivering MOOCs I strongly suggest you read the whole post.
http://hapgood.us/2013/05/09/creating-the-education-death-star