I have done a tracert before. And honestly, when I did it, I looked at it like a deer looks at an on coming truck. Really; I wouldn't know what any of it meant, but thanks anyway guys D:1. If you use a proxy, that one may be blocked from the site, so I doubt it.
2. Open up the command prompt and tracert the site. It won't tell you why you can't access it, but it can tell you if a hop between you and the site isn't working and that's a possible cause.
Other than that, I've got nothin for you. First thought when you posted was the conflicker worm, but I doubt it if that's the only site that's not loading and I know you're probably up to date with virus scanning software.. The conflicker only blocks Microsoft, Symantec, and other related sites anyway.
So yeah, at least try tracing the route.
Yeah, I'll probably call my ISP tomorrow to see what's up. If they do what I bet they'll do, I'll probably just contact warcraftmovies or something. Thanks thoughTracert pings each of the points the information your computer must pass through to get to its destination three times. Kind of a like a ping on steroids. You'd just be looking for nodes that don't respond and just time out, signified by asterisks.
EDIT: Weird. Yeah, I'd either contact your ISP or email one of the admins of that site to see what's up.