I’m hearing some good things about Synovate. It is a product testing group (they send you free products before they are marketed to the public and you tell them what you think). You keep the products and are entered in to receive more prizes.
This is fun for everybody, especially college students! Usually the freebies are full size, unlike other things sent to you via snail mail.
They are looking for people to join their program right now so sign up while you can. If you decide it isn’t for you then you aren’t out anything (all it takes to start is your name and email). If the banner is gone then they are no longer accepting applications.