Interesting ways to think about web design

I'm really interested in this idea of designing sites that are controlled using API's. I found this article really interesting. What do you guys think?

Would it be possible to add comments to students posts? Maybe it could help us communicate and learn from each other.

1. Here is an article about The Increasing Importance of Web API's
2. Another article on The Basic Principles of Web API Usage
3. And here is the API-Centric tutorial