A relatively recent addition to the Canadian job search landscape is Eluta. Like my previous recommendations of SimplyHired and Indeed for the US market, Eluta takes a Google-like approach to spidering Canadian sites and aggregating all the jobs it can find under your search parameters. It really is an available job posting search tool.
Most importantly, it is hitting the actual hiring company site, enabling you to identify current job opportunities that you might not catch on Monster, Workopolis or other Canadian job sites. Valuable and a welcome addition, in my opinion to the Canadian job search landscape.
I am not recommending Eluta as a replacement, but rather a valuable addition to your Canadian job search tool arsenal.