I want to have detailed pages for most of my categories, but for some categories I do not want to have detailed pages because there simply isn't more information to place on the detailed pages for links in those categories.

Can someone teach me how to have a link to the detailed pages based on the category?

So links in Category1 would have

website_url / detailed information
description

while Category2 would have simply

website url
description

and no link to the detailed page? (I don't mind the extra detailed pages being built since there aren't that many of them, but I need to find a way to conditionally include the link to the detailed pages to be able to exclude it from links contained in 6 or 7 specific categories - I don't want people clicking on the detail page for categories where there won't be any useful information on those pages and they would be better off going straight to the web sites)

Any help would be very much appreciated.