EdX is the trusted platform for education and learning. Founded by Harvard and MIT, edX is home to more than 20 million learners, the majority of top-ranked universities in the world and industry-leading companies. As a global nonprofit, edX is transforming traditional education, removing the barriers of cost, location and access.

Harvard University offers many free courses through its online portal. While some of these courses are paid, there are plenty that are also available for free. These courses include, game development, app development, public speaking and data science. When you filter according to free courses, at least 71 are available on Harvard.

Every course on Coursera is taught  from world-class universities and companies, There are hundreds of free courses available giving you access to on-demand video lectures, homework exercises, and community discussion forums. A very interesting site. The only downside is you don’t receive accreditation or a certificate without a fee.

Stanford University offers all online courses throught Stanford Online.  The university’s open learning courses are available to for free but again you have to pay tuition to complete a certificate or degree through the platform. 

By choosing to share their course materials freely and openly on the Web, the MIT faculty have created a unique global educational resource that has touched the lives of millions. 

There are short courses such as computer science, biology, psychology, and more. Hoever, there are not as many open courses as you would find other open learning websites. Carnegie Mellon’s open courses are similar to what a paying student would receive minus the course credit or access to an instructor.

This is a  really interesting site. Udacity is where lifelong learners come to learn the skills they need, to land the jobs they want, to build the lives they deserve. Udacity partners with leading tech companies to learn how technology is changing industries, and teaches the critical tech skills that companies are looking for in their workforce. 

Is a one-stop-shop for those who wants to succeed with Google professional tools and solutions.