Show HN: We made a free introduction course to Ethereum and Blockchain

Let me know if you have any questions!

Also, check out our certified Ethereum Developer Online Course: https://academy.b9lab.com/courses/B9lab/X16-2/2016-2/about

Although the Hard Fork Ethereum is going to go through might make people lose interest in the platform, every coder must still go through this intro course and understand the basics of the system.