R4DS

R4DS is a great textbook for learning R and Data Science. You can buy a physical copy of the book or access it for free.

Guess the Correlation Game

Sharpen your correlation-intuition with this game.

edX courses

There are a lot of free courses on edX on almost every topic. You can pay for certificates but auditing the material is usually free. I am currently working though the Data Science courses from HarvardX.

DataCamp

DataCamp is an online learning platform that can be a great start.

freeCodeCamp

Free coding courses on everything from scientific computing with Python to Data Visualization and Resonsive Web Design.

Introduce Yourself Online Workshop

Here is how I built this website following Alison Hill’s workshop for Rladies Tunis on Youtube.