Sorry for the late replies, but I haven't been able to get into my account since the redesign.
@giantstalker: I did just the bare minimum of research for this article, so I'm wary of merging it with the main wiki article in the off chance that I'm wrong on a lot of points. If anyone else is willing to do it (and gain the sweet, sweet wiki points), that's cool with me.
@haltiamreptar: I've never heard of the norsemen not being fans of vikings, as I have always assumed that "norseman" meant "viking". Do you have a link to the NPR report?