Just toying with the idea of "Where should I post X?" page or search bar where a user types generally what he wants to do, such as "I have a Perl question," "I have some cool code I want to share," "I have trouble with the Perlmonks site," etc, and the search interface will return him a suggested section, SoPW, Meditations, etc., or a list of ranked ones.

I guess we could in theory inplement it by creating a bunch of dummy nodes titled "SoPW", "Meditations", etc. with contents/keywords solely characterized the titles/sections. Use the Super Search engine just to search those nodes when requested from "Where should I post X?" and return the corresponding title(s).

In other words, we simply modify and disguise the external behavior of Super Search a little bit from within some wrapper. Of course the search should probably be a "fuzzy" one (treating all same-stem words or even synonyms as the same word that appears in a dummy node).

I was trying to experiment the idea using Google search since they can search just a particular site. But the pages have to be indexed by them first in order for the search to work. Not sure any way around it.

Another model will be a decision tree based one, like the one in AI::DecisionTree. In a sense, it's more accurate and deterministic but the UI will be a bit more cumbersome since it will have to ask the user a series to questions leading to an answer.

Well, basically, it's just another Expert System.