Linking to the homepage for afterclasshq would probably be a better way to introduce people to the product. While you have an understanding of what an annotated document means, other people do not. It just looked like another document with advertizing links (and a generic chat popup to interrupt my reading). Forget about being a developer and put yourself in the shoes of potential users/customers.

The first question people will have is "What is it?" If they do not know or it looks like something low quality -- link filled pages and chat boxes tend to correlate with that -- they will close the tab or click the back button. Overall, my first impression was that the post was blogspam because the content was lifted from someone famous, filled with links, and there just to open a chat window.

It's an interesting idea and I see some potential because there is obvious thought behind the execution. Make the presentation straight forward and honest so that people know what it is, what it does, and why they should care.

Good luck.