I still don't know the first thing about it. I do want to learn it in the near future though.
I can't lookup  the links to the courses, as the wifi I'm using blocks access to The Pirate Bay. But you  can search "machine learning" in there, or you can go to Udemy.com and get the courses to watch online.
However, if I understand your post, you don't want to actually learn AI or ML, but you're looking for information about them. To the best of my (very limited) knowledge, you will get the best quality information on Wikipedia.