With most MOOCs going commercial (not-free to stay in business)
some established universities still have very interesting (and free) classes.
class: Statistical Learning | Stanford Online
In this Stanford class even a textbook is available online!
May be a good way to help learn newly popular language "R"
The "catch": "By registering as an online learner, you are also participating in research..."
That is, helping science by statistical analysis of your learning data, like Google and Facebook do, but for learning.
Statistical Learning | Stanford Lagunita
textbook: Introduction to Statistical Learning
Microsoft last year acquired the company that specializes in R, and integrated it in Azure:
Running R in the Azure ML cloud
Quickstart tutorial for R language for Machine Learning | Microsoft Azure