PromoSquad is a site that asks you to rate music to earn points (5 points per song). The points can be used to get prizes. Usually, people can get about 250 points in a couple days, so it's easy to get prizes. Best of all, your opinions are actually sent to record companies. Right now, the prizes are:
For 250 Points:
Flashing Fashion Ring
Bardic Records Sampler
Promosquad Pen
Borealis - Don't Mean a Thing promo
Don Yute - Row Da Boat Promo CD
For 1000 Points:
25 Recordable CDs
Sweet Pz Fashion Bag
CD Classics
Wycleff Jean - Greatest Hits
For 1500 Points (CDs):
Korn - Take a Look In The Mirror
Bravehearts - Bravehearted
Roscoe - Young Roscoe
Incubus - A Crow Left of the Murder
Oprah's Pop Star Challenge
J Kwon - Hood Hop
For 3500 Points (Movies):
Lost In Translation
Matrix Revolutions
Kill Bill Volume 1
Big Fish
For 5000 Points:
$50 eMerchandise Gift Certificate
Digital Camera and Web Cam
7-In-1 USB Card Reader & MP3 Player
128 MB Jump Drive
Note: I don't work for PromoSquad or anything like that, so I don't know everything about it. You can request prizes that you want. Prizes usually take a while to deliver. You can also win Instant Prizes or cash in monthly drawings. (I just won an instant prize today!) The above link is a refferal link, so I'd really appreciate it if you used it.
