I suppose it is possible that Geocities have decided they won't support *.ico's any more, but the file is in my account. The code for my icon is still in my blogger template.
<link rel="shortcut icon" href="http://www.geocities.com/jrfj44/fb.ico" type="image/x-icon" />
Update 8/01: Alright, I'm going to turn down the heat on the rant-o-meter. Maybe it's a browser thing? Investigating.....
Update Later 8/01: It's back. Who knows....
See also blogger-hacks, favicon.