After you create a portal site, you can give users access to it by assigning them to site groups. You can use site groups to help control general access to the portal site and to help control access to specific areas in the portal site. The following default site groups are available in Microsoft Office SharePoint Portal Server 2003: Reader, Contributor, Web Designer, Administrator, Content Manager, and Member. Each site group possesses corresponding rights. Rights are actions that users can perform, such as managing all settings and content in an area. You can edit the rights assigned to a site group, create a new site group, or delete an unused site group. A user who is not assigned to a site group won't be able to access the portal site.