The best way I know of to take part in newsgroups is to connect to them through your ISP. If you are unsure whether your ISP gives you access to newsgroups, then check around its website... you will probably find info on newsgroups there. If it turns out that your ISP does not offer newsgroup access, then you can subscribe to one of many newsgroup services found online.
You connect to newgroups through some type of software, and an address such as this: news.your-isp.com. Microsoft Outlook handles newsgroups, as do many other programs that you can get online for (usually) a small price. One specific piece of software that I have used before is called NewsBin Pro, and it works rather well. If you want more info on this program, then a simple search in Google will take you to it.
really. newsgroups are like giant file-sharing forums. its just a bunch of skatered split files that is a pain in the b***h to find and reconstruct. seriously thou, i love it. the hunt. the chase. lol. but yea, i mean i'd call up your isp. get the server information and crap. then download a good program like agent or xnews (search mr.google). those are the two programs that i ever would recommend. and trust me, ive tried ALL of them.
Ep, glad to see you come back and tidy up...did want to ask a one day favor, I want to enhance my resume , was hoping you could make me administrator for a day, if so, take me right off since I won't be here to do anything, and don't know the slightest about the board, but it would be nice putting "served administrator osnn", if can do, THANKS