Just some of e107's features
Searchable System logs (all admin changes)
Import/Migration Tool. Import data from the following systems:
Mass-Mailing to users/user-groups
RSS and Atom Feeds
Search whole website or specific parts of it.
Maintenance/Offline/Closed website mode. (or for only a specific group of users)
Notification System - receive emails when events occur on your site.
Youtube integrated search and rendering support
Customizable Admin Dashboard
Ranking/Like system for News/Blogs, Pages, Downloads, etc.
Error pages (customizable)