Now is the time to get some free music credit on Amazon. To get this free Amazon $2 mp3 credit, you have to share a song you like on Facebook. Simply copy the link to a song on Amazon, paste it in the box, hit the share button, and the credit is yours. As you know, you can immediately delete the shared link on Facebook after you get the credit.
Upon completion of the “Share & Claim” action, a $2 MP3 credit will be automatically applied to your Amazon account. Promotional credits must be redeemed by 11:59 PM PST on May 24, 2012. Amazon MP3 music is available to customers located and with billing addresses in the United States.