Compensation Description Table
Below is a list of the different types of compensation that survey companies offer. Just a thought - don't always just look for companies that give cash compensation because often companies that provide other types of compensation give you more bang for your buck...er...time.

CS
 Good Ol' Cash
RP
 Reward points that can be redeemed for gift certificates, merchandise, coupons etc.
PD
 Prize draws for various products or cash
GC
 Gift Certificates
MI
 Merchandise Incentives - Basically you get to keep the product you review
CP
 Coupons for various items