Yet the objective point is that people tend to identify with political parties and not political philosophies. If I want to know more about your political orientation, I should ask you what political philosophy you identify with and not what political party you support. As you may be supporting a political party for ulterior reasons, whereas the philosophy that you believe in tells me more about you as a thinker.
I voted Green in the last two elections, but that was with ex-PC (conservative) Jim Harris at the helm. I haven't checked, but it's likely things will take a turn for the left under Elizabeth May's leadership.
I think Harper's Conservatives are doing a decent job; in the next election he'll probably be a second to not voting/decling my vote.
I'm not registered with any party. I do my best to vote per issue and according to the politicians running, not necessarily the party they represent (not always easy, I'll admit). Frankly, I usually end up voting against the other candidates, not for the one. This means that in the last state election I actually voted for the Libertarian candidate because I knew I wouldn't be able to live with myself if I actually voted fro Arnold Schwarzenegger, and I didn't find the Democratic candidate (Phil Angelides) to be all that impressive.
Frankly, I find voting to be a bit of a chore since I've never been happy with any of the candidates. Maybe if I was I'd feel like I was actually doing something. I vote anyway because I think the process is important, regardless of how much individual power I may or may not actually have.