Mark & Mary Ann Weiss wrote:
cgi.ebay.com

It's very easy to spot a group where ads are permitted.
In the name of those groups, you will find one of these words:
forsale ads marketplace biz

In case the *general* rule for Usenet posting is unclear to you,
here is the charter for this group, which *explicitly* forbids ads:
http://groups.google.com/group/sci.e...-zz+Discussion