What is this:
You will get emailed songs, you listen to them for 1 minute and write a short review, you get a 5$ amazon gift card in the mail for doing it

Step 1:
Sign up Here : http://cur.lv/dwvsg

Make sure you make your profile as "white male" and your age in the 20s and your location as USA, this way you will get more reviews

Use the promo code VIP for 500 points and it will give you more chances to review songs for Amazon credit via email

Click the blue banner at the top that says "get weekly emails to win gift cards"

Rate 5 songs on the site

Wait for an email where they will send you songs

Listen to atleast 1 minute of the song and write a short review

They will email you a $5 amazon gift card