Usenet Software:

Newsreaders

Where and how should I post:

How to find the right place to post.
A primer on how to work with the Usenet community.
Hints on writing styles for Usenet.
Rules for posting to Usenet.
Emily Postnews answers you questions on Netiquette.
FAQ on making and using a signature file.

Creating Newsgroups:

How to create a Usenet newsgroup.
Usenet Newsgroup Creation Companion
Emily Postnews answers questions on how to create a new alt group.

Everything you've ever wanted to know about yEnc, but were afraid to ask can
be found here.  Along with solutions to aid in downloading yEnc encoded
files. ----    HERE