Oh well, one of my hosted web sites had the server get 0wned... my web page suddenly took quite a bit longer to load and looked rather different, too.
The hosting company appeared to notice pretty quickly, though -- when I telnetted into the box from another machine on the same network (ssh didn't work any more) to see whether my files were still there, five minutes later I got a broadcast message from root telling me the system was going down.
Afterwards, things appeared to work... mostly. My Perl scripts, including the one that filters my mail, were all broken since Perl had moved. Previously
Fortunately, mail appears to work again. Having mail bounce is ugly.