It is a sign that online college education is here to stay. Coursera has found a way to make money, provide value to colleges and was rewarded with some fresh investment. According to an article in The Chronicle of Higher Education investors poured in an additional $60 million in venture-capital.  They may have heard that colleges are finding more ways to make use of the Coursera platform and very few are dropping out of the project once they get involved.

And the platform is now generating revenue. They are providing shorter professional-development courses and project-based courses, both of which have nominal fees. They have also started to offer graded assignments for a fee. I think they may have or be close to a sustainable model.