The list is compiled by David Venturi.
David has looked into the reviews and stars and the methods of course delivery and came up with the list.
https://medium.freecodecamp.com/the-best-data-science-courses-on-the-internet-ranked-by-your-reviews-6dc5b910ea40
Here is his own blog:
http://davidventuri.com/blog/my-data-science-masters