I've been using Great Canadian Rebates for a few years and it's been great. I buy Groupons, Banana Republic, Sears, and Apple through this site and the rebates are paid to me via Paypal. I read about Ebates being in Canada but did not feel the need to sign up for another one. Until this weekend I wanted to buy some LivingSocial deals for dry cleaning and no rebates through Great Canadian Rebates. I thought I'd check Ebates.
Sure enough Ebates offers 2% cash back on Living Social purchases. Some more searching around and I found more rebates not offered like up to 2% on select departments at Amazon.ca (better than nothing), and 2% cash back on Apple products. Always good to have more options. For Canadian cash back rebates when you do your online shopping check out Great Canadian Rebates and Ebates.