I try to post at folkinfo.org and rec.music.folk when I know there will be a lengthy outage. If it's just a matter of a few hours, I don't bother.
My usual e-mail is joe@mudcat.org - but that often doesn't work when Mudcat is down. Many of the "regulars" know my other e-mail address joe-offer[at]msn.com, and you can find me in the phone book in Colfax, California.
The Help Forum used to be more useful during shortages because it was on a different server. Alas, the second server is no more - so if the server goes down, so do both the Help and the regular forum.
-Joe-