They aren’t down. They don’t have certificates on their sites, so most browsers are blocking them.
Ok. It's as simple as a browser no longer being configured to surf to an unsecured http:// website. With that in mind, one of the browsers I tried has an option where you can force it to connect anyway, even with invalid or-- I assume--missing certificates. Even after I tried that, however, it's no dice.
Since you said "most browsers," it sounds like you know of one that's able to get to those websites. In that case, please post the browser name and version you had luck with so that I can go find it to download.
