I just came across this website that has a bunch of extremely useful white papers on PKI. I am so excited, that I had to share with those that are not aware that this exists: https://www.sysadmins.lv/blog-en/microsoft-whitepapers-public-key-infrastructure-and-active-directory-certificate-services.aspx

I have visited other pages on that site as Vadims has reposted many blogs that are now hard to find due to Microsoft archiving a lot of the content. Vadims has done a lot of great work here.

-Chris