Interesting to learn a new etymological origin for the word Viking!
Great amount of references, but a little low on the picture referencing: let's at least give Sergey Ivanov a mention for the paintings (took a while to figure that out, although I vaguely recalled this painter from somewhere).
What's your take on how far the Vikings went: all the way to Mexico? My tour guide of one of the pyramids was convinced they had. We tourists all remained a little sceptical....