When the site was down all last night, the mailing lists were as well. Are they being run on the same server or group of servers? If so, you might want to consider some separation there.
This morning, Alex set up a Wikipedia Discussion page on my wiki: http://www.piclab.com/cgi-bin/wiki.pl?Wikipedia_Discussion. It's not needed now, but feel free to use that in the future in similar situations. 0