I checked out the site. There's no content besides the "Introduction" that I see. Clicking the Next button doesn't do anything.
Ahh one needs to hit the "Progress" button to see the various topics. (i'm reviewing this in live time

) You have "object ball path in several areas with redundant information. The same is true for the repeated "introduction section". Thumbs up for the simple diagram illustrating "deflection". There are too many sections on "Position Play where the same information is repeated.
With those things said. it looks like you've made a decent first draft of an online course. The material is very basic at this stage and in no way meets with what you state in the Preface:
"Preface
This subject will teach you what you need to know to become an expert pool player.
As in every sport, knowledge of the relevant concepts and rules of thumb, are just one of the requirements to achieve mastery. The other requirement is to hone your skill through practice.
But pool knowledge is very important. Without it, you can never become an expert player. Even worse, you'll possibly be handicapped by developing counterproductive habits that detract from your game. Like all bad habits, they can be very difficult to get rid of even after you've learned the error of your ways.
About the Author
Charles Irvine has been playing pool for over 40 years. He played his first game and many others at the town pool hall in the tiny town of Lyndon, Kansas. It was love at first sight. His dad took him there whenever they went to visit his grandma.
He's never stopped playing and over the years has learned a few things which he has decided to share here."
The information on your site is not sufficient to teach someone to be an "expert" pool player.
Good effort, it needs more work and more information to be a beneficial course for new players. Dr. Dave has a very good resource that can give you some ideas.
http://billiards.colostate.edu/ it's much more comprehensive.
I hope this review was helpful.