[tormodg]

When would the pop up box be displayed? When someone creates a new post/edits an existing post? Or is this something they would do inside LDM, then save the results to incorporate into the post later?

Either way is actually fine as long as it's somehow possible to edit/delete the list later.

I imagine a button in the editor, or a link, like "Choose links". When I click on it, I get a popup with a search interface. Links I add are displayed under the search field so that I can add more and more links to my list. When I'm done, I click "save" and close the popup.

I am not sure how to display the links or connect them to the post. I imagine it takes some kind of hook?

What I want to accomplish is the ability to build articles like this in vB:
http://www.hypography.com/topics/wormholes.cfm

Those links are pulled from a homemade link table so that when I update the links in the main application, the changes are reflected wherever the links are shown. It's written in ColdFusion, and not knowing much about PHP I'm not sure how to do the same in vB.