This doesn't happen often, but one of the best survey companies, PineCone Research, is accepting new panelists. PR pays $3 (via Paypal) for EVERY product survey you complete, plus sometimes sends out products for panelists to try. I've been a member with them for quite some time, and I just want to say, if you join, make sure to watch your inbox & participate in EVERY survey sent to you, as I've heard of them dropping members who don't respond to their survey invitations.
Here is the link to sign up!
Buy at AllPosters.com