The Godot 3 series is in full swing on YouTube, all of the foundational stuff is now covered as well as a deep dive into 2D graphics. Additionally the WIP book chapters are available in the private section, with the source projects available in the Patreon dropbox. Generally the chapters are 1 step ahead of the videos, so you've always got a pretty good idea of what's coming next video-wise.
Additionally there is a homepage up on GameFromScratch.com, which contains the videos, as well as source code excerpts for each video/chapter, if appropriate.
http://www.gamefromscratch.com/page/Godot-3-Tutorial-Series-Index.aspx
Thanks everyone for your continued support!