There are 3 groups; Moderators, Global Moderators, and AdministratorsModerator - Moderators have control of a specific section or sections and may edit others' posts, delete topics, and all that jazz but are only limited to their respective section(s)Global Moderator - They have control over EVERY section of the site and can perform all of those actions listed above (plus whatever I missed, like merging topics)Administrator - Administrators can vary a bit depending on the site. On some sites, being an admin will give you permission into thet administration panel which allows you to quite simply edit the forum. On other sites, they will have just about the same powers as Global Moderators, but on this site they also have the power to ban.Then there is the site owner who, assuming that admins in general don't have permission to the administrator panel, WILL have permission to it, allowing them to edit there forum by adding or deleting sections, changing the icons, site layout, ect I feel so cool! This was from personal experience =D