I’ve made a few more changes to the site, the most obvious being the ‘Sign-in with Twitter’ link on the comments. This means that you can comment here using your Twitter account, and (optionally) have a link to your comment tweeted when you submit it. This is through the Twitter Commenters plugin for Movable Type. You can also authenticate using Google, Facebook, AOL, Yahoo! or any other OpenID-capable service.
I’ve also re-enabled avatars by comments. It will try to use a picture from an authentication service first, then try Gravatar if you didn’t authenticate. If you don’t use Gravatar either then it’ll show a blank icon.
Finally, MT-Notifier is now provided so you can subscribe to updated comments by email, should you wish.