I wouldn't call that Off topic links but rather sort these links alike the sections in the code area for example, so you get in the end to a link directory for Administration (Unix->Solaris, Linux->Redhat, Debian, Windows->NT, 2K) and so on and you might end up with links to general IT related problems. I mean this operlmonks doesn't need to be the IT's open directory, but ok, it could be :-)
Just 2 cents

Have a nice day
All decision is left to your taste