Once again this week Blizzard is extending their maintenance hours, as per the following post:

Extended Maintenance 08/02/05

Tomorrow's regularly scheduled maintenance will be extended by two hours, beginning at 3AM PDT. This extension is necessary in order to apply a minor patch designed to address a few bugs which cannot wait until the next content patch. We expect each of the realms to be up and running by 11AM PDT. For information on Blizzard's patching methods, please read the information contained at the following link.

http://forums.worldofwarcraft.com/thread.aspx?ForumName=blizzard-archive&ThreadID=9

Edit: We're also going to take the forums down for maintenance during this time. When the forums do become available, the Dark Iron Realm forum will be visible for those that wish to post.

You can read the whole thread here.