I sometimes visit www.canadaka.net, it's pretty slow at times, but there's a interesting community going on there. I read it sometimes.
I also visit www.canadiandemocraticmovement.ca a lot, since the articles are great and insightful.
Every now and then, I also check out www.vivelecanada.ca, but I'm still more interested in CanadianDemocraticMovement
The founded regularly visits these forums, czardogs.. Great guy!
There's lots of good Canadian sites, you just have to look around. When we first started Canadian Content years ago, we exchanged links with a lot of smaller ones.. all of which have disappeared since then