SeattleFlamer: I love the concept of Airfare Watchdog, and I signed up for their deal alert newsletter quite a while ago (be warned, anyone looking to do the same, they send a *lot* of newsletters, pretty much every day).
I've never found any truly tremendous deals thanks to the Watchdog, but I'm always checking it. If I had to bet, I'm guessing the 'real people' over at WatchDog are looking harder for deals from American cities as opposed to Calgary, but I have no proof of that.
I also like to follow their
Airfare Watchdog Best Deal of the Day. They're usually meaningless for us Canadians, but I still can't resist looking.
Living in the U.S., you might find the
Fare Compare Deal Blog of use. I've seen some amazing deals from American cities this year ($250 return to Moscow anyone?). I see they literally just now posted a deal involving WestJet.... that blog is usually the first one to break the deal info. (Unless you want to follow Rick Seaney himself on Twitter, which can be annoying)