In addition to adding a custom message and/or an auto-updating Recently Updated Articles list to your site's sidebar, you also have the option of adding up to 2 custom Featured Article Lists.
1. Navigate to Featured Articles
2. Click Create a Featured Article List
3. Enter a name for your list and click Create a Featured Article List
4. Click the name of the new list
5. Optional: Choose who can view the list
If you only want certain users to see the list of content, you can change the Viewable for dropdown selection to a specific group of users.