* Yannick Kirschhoffer: I knew Asciidoctor thanks to one of his projects at Luxair
* Asciidoctor Discussion list: https://discuss.asciidoctor.org
* Stackoverflow forums: https://stackoverflow.com/
* Mermaid (https://mermaid.js.org, MIT): diagrams rendered in the browser from fenced mermaid blocks
* KaTeX (https://katex.org, MIT): fast math typesetting for formulas written between dollar signs
