Please replace your link with the actual tutorial, here on the forum. You can include a link along with the content, but posts in this category have to include the actual tutorial content.
Nice idea and beautiful graphic, but I thnk the consensus is that the advice is not super helpful…
Given that your primary business developing extensions, can I suggest you offer some training and support through the folks at Sloped, who are dedicated to SketchUp training? Perhaps they offer an affiliate scheme?