Just in case you're on this site at these hours and it dies completely (it probably won't) - never fear:

I have been advised that maintenance will be performed on the hardware that directly hosts this site as well as the network in the Data Centre that supports it on these dates/times:

10 October 10:00pm to 12:00am US Eastern

17 October 2:00am to 6:00am US Eastern

21 October 12am to 6am US Eastern