How to find newsgroups... Signup for a newsgroups posting/reading service like
www.giganews.com . Or a service that the sponsors currently hate like
www.pictureview.com ...
The nice thing about a service like Picture View is that it contains lists of the top viewed and posted to newsgroups... This allows you to target newsgroups with traffic and sales so you don't waste your time.
A primer on newsgroups for the newbs:
http://en.wikipedia.org/wiki/Newsgroup