Audible Membership: $5/Month

Amazon.com offers (for Amazon Prime members), An Audible Membership for $4.95 per month, for 3-Months.

Note: At the end of your 3-Month promotional period (in which you are paying $4.95/month), you will be charged the full amount of $14.95 per month, so you will want to be sure to cancel if you do not want to continue your membership.