If your organization cannot allow incorrect or inappropriate information making it into a forum or wiki, even temporarily, you can apply forum moderation and wiki authoring restrictions. Having done that, you should grant Community Moderator and Community Wiki Author roles to specific members to help develop and manage the content in those restricted areas.
To add moderators and wiki authors
1. Log on as an administrator and open Communities.
2. Open the target community and select Security, at left.
3. Select the Community Moderators tab.
4. Use the Source box to find members (they need not be subscribed to the community).
5. Select Add for each member who is joining the moderator role.
6. Important! Click Save before leaving the security tabs.
7. Repeat on the Community Wiki Authors tab, as needed.
To restrict a wiki to wiki authors
To limit authoring privileges on a wiki to a select group in your organization, you must
■ edit the wiki and enable Restrict authoring to Wiki Authors
■ add Wiki Authors to your community security (or else only administrators can change the wiki)
To enable forum moderation
To prevent posts from appearing on forums until they are approved, you must
■ edit the community and enable Community forums are moderated
■ add Moderators to your community security (or else only administrators can approve posts)
See Enabling forum moderation for best practices.