While Amazon doesn't offer promo codes for Amazon Prime, it does feature a one-month free trial available to those who've never tried the service. Those who wish to sign up log in to their accounts, click the Amazon Prime Free Trial link, and follow the on-screen instructions.
While Amazon Prime free trial members incur no charges for the first 30 days, they get automatically charged the annual fee when their trial memberships end unless they turn off the renewal option. Amazon Prime entitles members to free two-day shipping on many of the online retailers products, free access to video and audio offerings, and invitations to sales open only to Prime members. Members also receive free access to the Kindle Lending Library along with numerous other benefits.