I want to collect coupon info in Canada, I need large volume info. where can I get it? thanks. I know I get collect them from newpaper, manufacturers website one by one, is there any efficient way to get more? thanks.

Try http://www.save.ca - free grocery coupons. Also you can find more info about Canadian coupons here http://couponing.about.com/od/canadiancoupon1/