Whenever this server experiences downtime, we tend to not only report it, but we also explain how it may have been avoided (if possible) and how it will be prevented in the future.
From around 1AM (PST) on January 1st, 2010 to 3PM the same day, zylblog.com, zylstra.randomnetirc.org, and any other attached services were down and completely inaccessible from the outside network.
This downtime was caused by weather. Snow falling off the roof fell onto the cable, displacing it enough to cause it to ever-so-slightly become removed from the fiber box. The issues was resolved by moving the cable back to where it belongs, and will soon be nailed further out of the way than it is now.
This issue was unavoidable and seems to happen every year during the cold season. Wind, snow, ice, and other acts of God and nature shift things around enough until they stop working.