If we look at some of the examples on YouTube, we can see that there are all sorts of Canadian artists who are succeeding--by running ads against their music videos, for example. There are Canadian artists who have started up with YouTube channels and that has then led to much broader distribution deals.
I'm focused here on YouTube examples, but truly, in the digital world more broadly, there are Canadian artists who sell lots of music on iTunes. There are Canadian artists whose podcasts are some of the most listened to. There are Canadian bloggers who are some of the most popular bloggers in the world. All of these, to me, represent a form of Canadian success online.