This is a partial list of newsgroups that are significant for their popularity or their position in Usenet history.
These are the most widely distributed and carefully controlled newsgroup hierarchies. See Big 8 (Usenet) and the Great Renaming for more information.
See also: comp.* hierarchy
Matters related to the functioning of Usenet itself.
Recreation and entertainment topics.
See also: sci.* hierarchy
Discussion of various topics, especially controversial ones. Includes political topics as well.
See also: alt.* hierarchy
This is the most extensive newsgroup hierarchy outside of the Big 8. Examples include: