I signed up for Synovate a few months ago since two readers emailed me about trying out full size product from them. (Of course, they couldn't say WHAT it was due to their confidentiality agreement, but one reader got a 4 weeks supply!) They are on a point system for their surveys, which you can then redeem for a check or voucher to online retailers ($5 = 5000 points.) I completed one survey (about 15 minutes) for 1500 points if that helps put it in perspective. Sign up here and let me know if you get chosen to try anything!