[xdude]

Yes. It would be great to have a certificate along with the free course but something is always better than nothing. Harvard is offerings even credits for their free course that's something great for those who would like to attend to that university. Because these big universities degrees cost a fortune and with free credits students can save few thousand usd thought its not the whole degree fee. Also now Coursera has started paid courses conducted by some university which give credits for their degree courses. I hope this will become a trend since Student debts has become a serious problem for some countries.

Here is couple of small computer science courses by the Princeton university.

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https://www.coursera.org/learn/cs-programming-java

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https://www.coursera.org/learn/cs-algorithms-theory-machines