Have you joined Vocalpoint yet? If you haven't, you're missing out on a lot of great coupons and samples. I have been a member for over a year and love the surprises I get in the mail. They, of course, encourage participation, but I have really done very little and they still keep sending me random goodies in the mail. I've received free product samples, high value coupons, and even free product samples. All you have to do is sign-up!
Vocalpoint is a division of Proctor & Gamble. There are surveys and message boards, articles and polls also available on their site.