Blog comments are great but sometimes you need that extra level of interaction. For those times, I just added this mega-cool feature all my coworkers have been telling me about. It lets you IM me directly from my blog when I am online. To use it, just click the icon you see at the top of my blog, it will show as green when I am available. All I ask is that you don't abuse it, and let me get some work done :)
If you have a blog, you can easily add this feature as well, just follow this link, log-in and enable access from the web. Then copy and paste the generated HTML where you want it.