I'm sometimes shocked that even some progressives @ PB are talking out of their asses. You want to get rid of Harper, then vote strategic, but at least know what your doing!
Again, here are a couple of websites to get information: Catch 22 Harper Conservatives and Swing 33.
And if your vote really doesn't matter a damn -- as in most places in Alberta -- consider throwing a couple of bucks towards the Pirate Party by voting for them.
Or some other shit-disturbing entity of your choice.