Well, I don't know what's going on in Canada, but I assure you that in New York, sketch is alive and well. Come visit sometime and go see some shows at UCB, the PIT, the Magnet or any number of other small venues, and you'll see that the internet has not killed that blackbox experience. The groups are out there, you just haven't heard of them yet.
While filming "Death Comes to Town," KITH member Scott Thompson was also fighting stomach cancer. Details - along with his recollections of witnessing a school shooting while in his teens - at http://www.larrygetlen.com
Well, I don't know what's going on in Canada, but I assure you that in New York, sketch is alive and well