We have now been accepted as an Audible Affiliate with our own link in our podcast store, which means a better deal for Audible sign up for both us and the people who sign up (one month free + 1 free audio book you get to keep, you can cancel if before the 30 days if you don't like it). Now only if we had gone ahead with the initial plan to make an audiobook of Hymn for Spring
Edit: It seems like you can get that deal anyway with any trial signup? Not sure but if you signup please do via ours anyway
http://www.audibletrial.com/APOIAF