After visiting this site, I am now convinced that there is, in fact, a newsgroup for pretty much every interest under the sun. Created and maintained by Harley Hahn, author of Harley Hahn's Internet & Web Yellow Pages, this site makes it exceedingly easy to discover newsgroups related to your hobbies or concerns. Newsgroups are listed by category and topic (example: Hobbies: Scale models: Model...