Look, my first WordPress plugin
You’ll see that there’s a link called “Quick Comments” at the bottom of each of my posts. I decided to experiment with AJAX the other day at work. It found it interesting enough to play with here (after all, I can only justify so much time spent on programming in the QA department) and decided that I needed to figure out how to make plugins for WordPress, too. So, there it is. Clicking on the link gets an excerpt from each of the three most recent comments, so you can check comments without loading a whole new page.
In order to keep myself motivated to actually do this, I didn’t really look to see if this had already been done. I would suspect so. I still may clean it up enough that I could release it to some degree. As it stands, I don’t have an options page and the way the comments are styled could use some generalization.