This article is from the rec.audio.* FAQ, by with numerous contributions by Bob Neidorff others.
The newsgroup rec.audio.marketplace is specifically for these
postings. Do not post For Sale to any other rec.audio.* group,
except perhaps rec.audio.high-end. Only post to
rec.audio.high-end if the item is of interest to the high-end
crowd. rec.audio.high-end is moderated, so if the post is
deemed inappropriate by the moderator, it will not post.
All For Sale posts need to have a real name and a real phone
number. It is also very valuable to include your location,
so that people can determine if shipping will be cheap or
Usenet is not for commercial purposes, so if you are associated
with a store or other retail operation, this is the wrong
place for your advertisement. If you have some used personal
gear or something you bought and don't need, feel free to post.
If you see an advertisement for a store that has a great deal,
AND people had been asking about where to buy that item cheap,
you might want to tell the readers on rec.audio.marketplace
about it. However, avoid commercializing. Something like:
Pete's Audio has JVC PS992 for $435, which is 40%
less than anywhere else; If interested 202-555-1212.
should be fine. Avoid posting their entire price list,
or using too many superlatives. If commercialism leaks
into Usenet, it could materially hurt us all.
When posting something for sale, have a concise but complete
subject line. Come to think of it, this is good advice for
any post. Some use abbreviations like WTB (the poster Wants
To Buy) or WTS (the poster Wants To Sell). Here are some
examples of good subject lines:
Subject: WTB 100W Receiver any condition
Subject: 4Sale Power Amp PS 352 $500 San Francisco area
Subject: 4Sale Stereophile Back Issues 4/88 to 6/92
Think about who you are willing to sell to before you post.
If it is fragile or heavy, you may not want to ship it, so you
may restrict to people who are close enough to pick it up.
Use the Distribution: header to restrict your posting area.
If you will only sell to people in Texas, don't distribute it
to Australia. Check with your system administrator if you
aren't familiar with the options you have for Distribution.
Different sites have different restriction codes available.
Distribution headers don't always restrict distribution, so
it is still a good idea to include the target area in the
Anyone buying or selling needs to understand that Usenet
contains no mechanism to protect the buyer's money or the
There is a frequently posted message "A Guide to Buying and
Selling on Usenet" which talks of other issues on the subject.
This is posted to news.answers as well as other newsgroups.
It is also available by ftp from "rtfm.mit.edu" in
"/pub/usenet/news.answers/radio" as file "swap-guide".