Well, it seems that DirectNIC's offices in New Orleans are still up and running, and the internet connection is intact, so they've got a webcam up (feeds:
1,
2), along with running commentary
on a blog. They say they've got 3 weeks of generator power and are on the top floor of a building (the street it's on isn't flooded anyway, though). Their main worry seems to be looting, including apparently some looting by police, so they're armed and have the building locked down.