Dreamhost now says its router went down because it was attacked:
At this time, all network services have been fully restored to our data center. The cause of the outage was a major distributed denial of service attack (DDOS) aimed at one of our main routers. Once we isolated the problem, we quickly worked with our upstream provider to resolve it. A full report detailing the problem and the steps we will be taking to prevent it from happening again will go out tomorrow. All services are now up, but you may experience email delays as remote networks re-establish connections with our servers. No emails were lost. If you are still experiencing problems of any kind, please contact our support team.
Whatever happened, it seems to have taken a number of the blogs I read with it, notably Whiskey Bar.
