I tried to click and open the read more links but it still didn’t work in Firefox browser.
Hello! Thank you for choosing A Cloud Guru! We apologize for any inconvenience this may have caused. For the links to the supplemental documentation are accessible through the Interactive Diagram found in the resources section (just as Anamaria stated above). I have confirmed that this works on firefox and included a direct link for ACG students to access this section of the diagram below, for your convenience. I hope it helps!
Understanding Standing Cloud Computing Section Interactive Diagram
https://d1.awsstatic.com/whitepapers/aws-overview.pdf this is the link. Try it