Unfortunately I don't speak or write Norwegian, but I am writing/creating a book about the most beautiful waterfalls in Norway. I have visited hundreds of waterfalls in Norway (http://www.europeanwaterfalls.com/waterfalls-in-norway/) but I want to create the book with suggestions from readers.
I think it is better to let people decide which waterfalls are favorite, instead of a personal opinion. Everybody can vote on my website: http://www.europeanwaterfalls.com/poll-beautiful-waterfalls-norway/
Even if you don't know much about waterfalls in Norway, you can get inspired by a lot of pictures I made of Norwegian waterfall via the menu item "waterfall pictures Norway".
Photos and information about waterfalls in Norway are always appreciated, I have not visited (yet) all waterfalls in Norway.