This article is from the Introductory Macintosh FAQ, by Elliotte Rusty Harold firstname.lastname@example.org with numerous contributions by others.
The FAQ is posted automatically about every two weeks, give or
take a day. Normally it doesn't change more frequently than that;
and I want to avoid wasting bandwidth since Usenet is not, contrary
to popular belief, free. The FAQ includes an Expires: header to
insure that one version doesn't disappear from your news spool
until the next one arrives and a Supersedes: header so multiple
copies won't waste everyone's disk space. This is all accomplished
automatically via Jonathan Kamens' faq server. If the FAQ is ever
not available at your site, then your news software is BROKEN and
should be fixed. Complain to your news administrators about their
broken software that ignores Expires: headers, not to me.