Every member on a vBulletin discussion board must belong to at least one usergroup. These usergroups allow you to control who has access to what and later on (Chapter 5) we will be taking a closer look at the usergroups. However, vBulletin comes pre-installed with default usergroups, which can be used to get the forum up and running quickly.
There are eight default usergroups:
For the moment you only need to be concerned with three of the usergroups: