The first link (on webup.org) is the original one. The rest is someone else copy-pasting the content on their websites without permission. But Google does have

The first link (on webup.org) is the original one. The rest is someone else copy-pasting the content on their websites without permission. But Google does have its tools to detect such a scam. About the newsletter in the article: I think you can join Nicholas’ mail list and reply to one of his emails or DM him on Twitter. He is a nice guy and will probably send you the “Thoughts of mistakes”.