Shopper's Voice is a Consumer Research Centre that let's you "speak your mind, make a difference, earn rewards". Basically you fill out a survey every few months, and they will send you exclusive rewards like free samples, money-saving coupons and special offers tailor made to your shopping habits. If you haven't joined their panel, I definitely suggest it, the survey is quite long inititally, but it pays off in the end with the goodies that they send you. Also when you join, you'll be entered in their $5,000 cash sweepstakes.

Click here to join Shopper's Voice.