All existing content, and any new content that is added, will have on the 'edit' tab a select list under the heading 'Research Area'. Selecting these will make that piece of content appear as a list item on the corresponding research or category page. For example, if you select 'News' and 'Liberty' (You can hold down control (or command on a Mac) and click to select multiple categories), then save the item, it will be listed automatically on the 'News' and 'Research –> Liberty' pages. Not selecting one of these categories will mean this item of content will only be much harder for visitors to find later on.