This keeps the number of active articles to a manageable size. A variety of newsgroup topics are offered including, but not limited to, computer programming, cooking, socializing, soap operas and business-related subjects. Newsgroups allow you to read the group's articles, or postings . Most groups also permit you to post your own comments to the group. Usenet News has no central authority.
Sites send and receive news feeds on a daily basis, and each site decides which groups to receive.
Newsgroups are organized hierarchically by topics, subtopics and sub-subtopics. For example, if your topic is recreational , one subtopic listed under it might be food and a sub-subtopic under that could be cooking . The newsgroup then is listed as rec.food.cooking . Subjects can include sex, the Simpsons, or privacy. The newsgroup name uniquely identifies its topic.