Let's collect all the programming learning sites and free courses. Please contribute to this list by commenting below every other site you know about and it's free. There are a few:
https://www.datainsightonline.com/ https://www.w3schools.com/ https://www.sololearn.com/ https://progate.com/ https://www.codecademy.com https://www.coursera.org https://www.edx.org https://codesignal.com/ https://www.freecodecamp.org/ https://github.com/ https://teamtreehouse.com/ https://www.khanacademy.org/ https://tutsplus.com/ https://www.codeconquest.com/ https://www.codechef.com/ https://www.codewars.com/ https://eu.udacity.com/ https://code.org/ https://coderbyte.com/ https://www.codeavengers.com/ https://www.pluralsight.com/codeschool https://dash.generalassemb.ly/ https://www.simpliv.com/ https://www.learnenough.com/ https://hackr.io/ https://www.codechef.com/ https://www.codingame.com