Doug from Aderit Internet Marketing Consulting just tipped me off on something not well known to the Overture customer, at least I have not hear of it until today. A term known as "Godzooky" at Overture!
Overture has a broad match technology named Godzooky. Doug has sent an email to Overture asking for more information about "irrelvant clicks" coming from the Overture PPC campaigns he was running. In a response back from Overture, they mentioned something named "Godzooky". And I will quote from his response from Overture's International Client Services department; "We have a tool called Godzooky that is used when there is no match in Match Driver?. Godzooky uses the first 60% of the listings in the Index (search terms, titles and descriptions) and attempts to find an algorithm."
Overture has deactivated "Godzooky" for Doug. By the way, a search at Google or Yahoo on "godzooky overture" brings up nothing. But Godzooky brings up this friendly Godzilla at http://www.internationalhero.co.uk/godzooky.htm.
Doug has also posted this over at WebmasterWorld.