Scott Shared Values again offers its members a $5 Amazon MP3 credit for free. (A code will be sent to your email address. Click on the link in the email to redeem your code on Amazon. Not a member? Sign up for free.) That's tied with our mention from a week ago as the best free Amazon MP3 credit we've seen since August, when Coinstar offered the same amount with a $20 transaction. Limit one per person. Credit expires January 31, 2013.

Of note, this offer may only be valid once per email address.