Don't worry about it. Most people, even those who are knowlegdeable about computers, don't know that the newsgroups exist. They're a remnant from the early days of internet, they were once called USENet and was what existed before the World Wide Web and HTML.
If you're interested in having a look at them go to Google and click 'groups' and enter a search. Google bought Deja-News, a search engine for the newsgroups, and has stored about a billion posts covering every topic conceivable. Searching the newsgroups can often turn up information not found anywhere else.
If you have seen the site
http://www.thekrib.com , it consists largely of select newsgroup postings (and mailing list postings).