List Displaying Child Content

I am trying to set up a links portlet that displays content from the new
pages it creates.

For example,

I click to add a new "link" and select a new page using a specific template.
Now, I don't want to have to enter things twice.  So, I want to set up the
links list to display the title, and other key information from the pages
created in the links portlet within the link's displayed information in the
portlet.  Thus, when I update the description field on the created page, the
update is also displayed in the description field of the applicable link in
the links portlet.


How do I do this?  I set up the new template I want to use for the new
pages, but I am stuck on how to set up a new portlet -- or even if this is
the route for me to take at all here.

Thoughts and help appreciated!