As I write this at 2:25pm PST, there is a wonky little problem with Twitter, which is affecting blogs that use a Twitter badge (like the Recent Tweets widget on the right).
You may be getting a popup asking for Twitter login credentials. Ignore it. The peeps over at Twitter will be fixing this shortly.
*UPDATE, 5:21pm PST*: Okay, maybe not quite that shortly. Hang in there; if this annoying problem lasts longer than another few hours, I’ll temporarily disable the widget. Meanwhile, if you’re up in SF, drop by the Twitter HQ with a case of cold ones. The engineers could probably use it.