The Big 7 (later the Big 8) are a group of newsgroup hierarchies established after the Great Renaming, a restructuring of Usenet that took place in 1987. These hierarchies are managed by the http://www.big-8.org/ Big 8 Management Board. Groups are added through a process of http://www.big-8.org/dokuwiki/doku.php?id=policies:creation nomination, discussion, and voting.