I'm going to be making some major (overdue) upgrades to the software that runs hastac.org today and/or tomorrow (we'll be updating to Drupal 6.20 and also updating dozens of contributed Drupal modules). Due to the complex nature of the site, this could result in some short downtime or glitches.
Of course I have everything all planned out so you should notice little if any changes. But in case you do have problems with the site, please feel free to report them here. Thanks for your patience and support!