Hi-ho! We're upgrading the canaries that power the Talk-o-Tron today. Nothing major, but expect some brief outages.
Edit - And we're back! Should be a few improvements - including a new option to watch topics (the button's at the bottom of each thread), and forum comments on a topic created from a front-page story appending to the front page comments - but do let us know in the moaning/suggestion sub-forum if you hit any problems.