Twitter has been down for 30 minutes, and one of the trending topics before it died was "Twitter Zombies". Whenever twitter dies it always makes me think some breaking news event has done it in, but not this time?
As of this writing, Facebook is now starting to wobble as well – perhaps from the influx of Twitter rats moving in?
Update: It’s a denial of service attack. http://status.twitter.com/?loc=interstitialskip