Last night at around 9pm EST the site went down due to circumstances out of our control.
Apparently two core routers at the primary upstream bandwidth provider for our Service Provider went out. Layman's terms: Something broke and the Internet stopped working for a lot of people, including us.
I apologize for the outage but I should stress that there is nothing we could have done to prevent it. This is not something that happens often and I don't expect it to ever happen again.