Each file is an article and belongs to one or more newsgroups.
Posting means distributing either an original article or a response to someone else's article.
Any user can read or reply to the newsgroups articles. Netscape News is Netscape's newsreader. This tutorial will teach you how to work within Netscape News. In particular it will teach you how to read an article, reply to a posting, post an article, and subscribe to a newsgroup of your liking. How to view newsgroups via Netscape News.