Has anyone heard any discussion of an 'Icelandic for English Speakers' course on Duolingo?
Many people (myself included, FWIW) consider "Scandinavian languages" a synonym for "North Germanic languages." The Encyclopedia Britannica, for instance, and Wikipedia--which looks to have been somewhat edited, but look to the right under "North Germanic languages," where "Scandinavian" is listed as a synonym, along with "Nordic."
That's true- in the English-speaking world that's often how 'Scandinavian' is used. In the Nordic countries however, 'Scandinavia ' is specifically Norway, Sweden and Denmark. Faroe, Finland, Greenland and Iceland are not included, nor is Svalbard even though it's part of Norway.
Also your wiki article, which states "In Scandinavia, the term "Scandinavian languages" refers specifically to the mutually intelligible languages of the three continental Scandinavian countries" in the second paragraph.
I studied Icelandic back in 2008 on livemocha, which doesn't exist anymore. Its a beautiful language, and very similar to Danish/Norwegian/Swedish... I hope someday that it comes on here. Icelandic is amazing.
If you want to listen to Icelandic music, "Pall Oskar" is the most popular singer. I love his song "Allt fyrir Astina" which means all for love. You just learned a new phrase! Good luck with your Icelandic dream.