After my post on the monumental Inukshuk in Collingwood, Georgina asked if I could provide more detail on Inukshuks. Her request sent me off to do some research about it myself, so this is what I've learned.
First, the term itself is evolving. The Canadian government and the government of Nunavut (Canada's Arctic territory) both prefer the spelling Inuksuk, plural Inuksuit, so those are what I'll use. However the English spelling Inukshuk, plural simply Inukshuks, is widely used now, and the term seems to be evolving in that direction.