This article is from the Jobs FAQ, by Snoopy snoopy-at-sopwith.uucp.
If you do not get any (or any interesting) responses from
your job posting or resume, you may want to post it again. But
first, be patient. It can take 15 days for an article to reach uunet,
which is a *very* well connected site. Presumably it can take even
longer for an article to reach less well connected sites. Then, even once
an article arrives, not everyone reads every group every day. If you need
to re-post an article, wait until 30 days have passed from the previous
posting. Frequent repostings waste resources and annoy readers.