Update: This is still available from the original posting. You cannot redeem twice if you already have.
I love Amazon, I do most of my online shopping there. Plus right now they are offering up a little freebie.
Get a $1 Amazon MP3 credit. Click here and “Buy” any FREE app listed on the page.
After completing your purchase, you will receive an e-mail indicating that a $1 credit for Amazon MP3 music has been applied to your account automatically. Promotional offer limited to one promotional credit per customer.
Promotional offer is valid from February 1, 2015, through December 31, 2015. You must redeem the credit by January 31, 2016.
Amazon is still offering free 2 day shipping when you join Amazon mom!