OMGTwitterisdownagain. Or extremely flaky, at least. This time, the problems seem to occur only when trying to access the Twitter website, as the API seems to be fully functional and thus not causing any trouble for third-party clients.
Search also seems to work fine, as you can tell from all the people tweeting that Twitter is down for them – go figure.
We’ll keep it short and sweet: use a third-party client for your tweeting needs or find something else to do (like blog about the fact that Twitterisdownagain).