For all you Canadian readers (and hopefully even those of you outside of Canada) CBC Radio 2 is running a contest called the “Great Canadian Song Quest.”
You should take a look at the website for the contest. It lets you select each province and look at a few select artists (including checking out a short sample by each one). If you can’t see that, or you get annoyed by the Flash stuff, you can check out the Artist Press Kits here.
For you hip hop heads out there, both Shad and Dragon Fli Empire are featured in this contest. Shad is obviously under Ontario, and Dragon Fli is out in Alberta. If you go province by province, you’ll see some pretty awesome acts no matter what you’re musical taste is.