jocor

Thanks for posting. Next week, we'll launch two new courses, that complement two Coursera courses (one from Mine Cetinkayarundel on Data Analysis and Statistical Inference, and one from Eric Zivot on Computational Finance and Financial Econometrics).

Agreed, we'll make the discuss part hidden by default. The idea was that discussion of the R code should be easy for educational purposes.

Memory is indeed the our biggest concern. We now allocate 50MB of memory to every R session..

Thank you for the advice and the pointer!

We do use Rserve and AppArmor. Security is something we're working on right now, but we're hiring ;-p

Thanks for the feedback! I agree with your comment about the homepage console. Achievements/completion is something we'll definitely spend a lot more time on in the near future :-).