Today NL (and some other sites) are moving to a different server. This is a short move so I expect minimal problems. It is simply moving from one server at DreamHost to another. Thus a problem is likely to be a temporary DNS lookup issue.
Let me put in a plug for DreamHost here. I have used a lot of hosting companies in my life and have some pretty amazing stories, virtually all bad. Dreamhost has been far superior in ways I did not expect. That includes how they deal with migration of sites between servers.
The status info is up at http://monosmedia.com/index.php?cID=143 and will be changed to reflect any "interesting events".