If you build a search with the criteria being "Generic linking", you get a column for the linked items. It's just the number of linked records, but when you click on it, it will pull up a new search for those linked items.
We found this while making a particular view for a team. Now that we want to see that column other places, we've found that its only an option when search criteria is generic linking.
The idea is to allow this column to be able to be added to any view.