The Indiana Historical Society chose the Plone content management system (CMS) because it allows sites to be updated by the designated personnel without HTML / programming experience required. Administrators can easily update their own content; staff members can write their own blog posts - all to give visitors to the site the most accurate, up-to-date information possible and clearer insight into the mission and work of the non-profit.
Administrators can see the history of each piece of content - who updated it, when it was updated and can even revert the content to an earlier version.
They can also see exactly what was changed in a revision:
Locking / Unlocking Content
When a document is edited, it is automatically locked, preventing one user from accidentally overwriting the updates of another.
Users do not need to be concerned about how to get their new content displayed in the navigation. When content is added to the site, it is automatically added to the navigation.