@Gigi writes in his 21 Lessons:

Gigi writes in his 21 Lessons:

"If the resource has a URL associated with it, the URL was alive and kicking in October 2019, since I was able to successfully access the resource in question. If any of the following URLs leads to a dead page, I’m sorry. Please let me know99 so I can update the link(s)."

Hey Gigi, why didn't you use something like archive.today? That helps readers like myself a lot. But I'm curious. There must be some reason for you not to use it.