EditMe is a powerful collaboration tool. Information can be organized democratically and edited by multiple users to create a single location for reference, research, project, team, or company information.
Forum module provides simple threaded communication around topics within the site.
People visiting your site can comment on any page. Comments send you (and anyone else who has registered and is interested) an email notification, and are displayed in a special area below page content. As the administrator, you can delete individual comments or turn the feature off altogether.
Every edit to a page creates a new version. Review all versions of a page, and roll-back to any version.
A "diff" tool visually compares different versions of a page to show what has changed.
Concurrent editing support merges changes, or prompts the user with a Diff comparison of edits in the event of a merge conflict.
There are lots of ways for a group to stay informed about changes to a site. See the Notification Features section for details.