- Each topic collection of posted notes is known as a Newsgroup. There are thousands of newsgroups and it is also possible to form a new one. Many newsgroups are hosted on Internet-connected servers but they can also be hosted from servers without the Internet.
- Usenet’s original protocol was Unix-to-Unix Copy Protocol (UUCP), but today the Network News Transfer Protocol (NNTP) is used. Most browsers such as those from Netscape Navigator and Microsoft, provide Usenet support and access to any newsgroups that you select. On the world wide web, Google and other similar sites provide a topic-oriented directory as well as a search approach to newsgroups and help users register to participate in them. In addition to this, there are other newsgroup readers, such as Knows, that run as separate programs.

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