Hi, I've hung around a big Nordic-language library a lot so let me tell you. Even in Danish basically ALL the resources I've ever seen are completely out-of-date, using the old orthography (sometimes even old Danish orthography!). The remaining resources are basically just modern Greenlandic bilingual books, but as we all know those tend to have very dubious translations even if both versions were written by the same person. Everyone thinks that if you want to learn Greenlandic you'll "obviously just go to Greenland", which is the same thinking that exists with Faroese, Sami, and to a lesser extent even Icelandic, which is why the learning materials for all those languages suck so badly.
The good news is, it means you can read all the old stuff in Greenlandic on timarit.is without a problem if you learn from that old stuff. But otherwise it's not that great.
It seems like the only real way is to find a fluent speaker and force them to write lessons that aren't just "one word a day" sorts of things. I've also tried to find some but all I managed to actually find was the sort of thing where someone's dad comes from Greenland but the kid never learnt the language so they couldn't help. Now that I think about it, if there is any Esperanto club in Greenland I can try to contact them and see if they want to help...
SV, EO: about C1 level; FO, IS: can read but can't write/speak; JP: beginnerhttp://learn-nordic.livejournal.com/
- resources if you want to learn any Nordic language (Greenlandic, Swedish, Old Norse etc.) but you have to make an account and join the community to see them.