MIT announces two MOOC sequences as edX strategy begins to take shape | Online learning |

Students will pay a fee for the verification service that varies depending on the length of the course. A course lasting only a few weeks that uses the service could cost $25, while a longer course could cost more than $100. Multiplied by however many students -- thousands, tens of thousands -- who enroll in a massive online course, the revenue generated from the verification service could be one piece of the puzzle toward a sustainable business model for MOOCs.

Via Alberto Acereda, Ph.D.