Copyright is the second you publish whether it is on a website, or an ebook, or a magazine.
As per the rest, there is not one article covering everything.
There are several ebooks on that subject.
You have told me more than once that you are an expert on one word searches.
Now since I know how to do specific searches, let me see what I can find.
Oh look.
https://www.amazon.com/Complete-Guid.../dp/1582977186
https://www.amazon.com/dp/B003I6496Y/
Or here is a blog post.
http://jakonrath.blogspot.com/2010/1...f-publish.html
Between those 3, you should know everything you need to know.
PS: it is not that hard.