I've certainly spent a lot of time thinking about what more recent (as in, can be traced to an author) stories can be considered myths and fairy tales, and I would have to say, Robinson Crusoe qualifies, from the number of intentional remakes to the way it seems to have sunk into our societal psyche, as argued by Mr. Zackel.
With a thorough analysis of the myth's predominance in today's media, as well as details about some of the counter-myths written as a response (A Christmas Carol, Huckleberry Finn), this article is thought-provoking, both in regards to our social conscience and in regards to our mythological studies. It is a little outdated, but only in a way that gives me hope that we're improving. :)
And it's free!