I tried two searches in Norwegian ("norsk ordbok" [norwegian dictionary] and "stortinget" [the parliament]), and they both returned many extreme or "alternative" websites. It was especially striking that the neo-nazi group Vigrid's website was the top hit for both searches. Maybe these sites just have less modern web design?
As very much a friend of Voltaire's, I don't think it's my place to police people's opinions no matter how disagreeable, but I also don't want my search engine to become branded as the search engine of choice for nazis because it's decent at cataloguing extremist sites.