Great!
What I mean is that the links could be arranged both after category and tags.
My site links to genealogy links. For examble a US Census would be in the category USA and have the tag Census.
This way user could look up all links listed under USA and (with your fix) all Censuses listed in the directory (wether they are from the US, Germany or Norway.
As you see I have countries as categories and type of genealogy source as tag. Some links have multiple categories and multiple tags listed to them.
Just ask if something is unclear ????