This would appear to be "all better" now.
As this is hosted, and we don't have CLI/shell access on the listserver host, I was guestimating hosting provider made a booboo, and that once it was noticed or reported, they'd fix it not just where noticed/reported, but likely all the places it had gotten broken.
I hadn't (yet) reported it ... didn't get fixed quite as fast as I might have hoped (was still not working a day or two ago), but at this point it would appear that it's all been corrected.
Quoting "Michael Paoli" Michael.Paoli@cal.berkeley.edu:
Hmmm, just noticed, getting some errors on the dreamhost hosted list archives, e.g. this works: http://lists.balug.org/pipermail/balug-announce-balug.org/2009-March/date.ht... but following liks from there, e.g.: http://lists.balug.org/pipermail/balug-announce-balug.org/2009-March/000125....
ml
doesn't work Seems to mostly (or entirely) be just some of the newer archived stuff (or stuff that *should* be archived).
I'll check further and see what I find.