Since we're on dedicated hosting, from time to time the site may go down due to a bunch of different things: hamster invasion, power failure, too much popularity (I know, you all want to stare at my picture), or just plain too many people on the Internets. If you think the site may be busticated, check out the Dreamhost status blog:
If you don't see anything posted for that day regarding the server venice, then the site may be legitimately down. Let me know via any of the contact info I have in my profile. I can submit a "WTF IT IS BROKE" request and they're very quick about fixing it -- even if it's one of the times where the site is going up and down every 5 minutes (from what I'm told this is when they're trying to repair stuff, so the more specific we can be the better).