Direct link to promotion on amazon.com (bypassing FB initially) (you still have to follow the instructions on this page and be logged in to a Facebook account.)
Original offer on FB
Thanks for the super-saver green!
See discussion below on how to apply to multiple accounts...
Promo page on Amaozon
_________ is at the top of my holiday gift list.
Click Share & Claim to post your response on Facebook.
Upon completion of the "Share & Claim" action, a $5 off $25 or more promotional credit will be automatically applied to your Amaozon account. Promotional credits must be redeemed by 11:59 PM PST on Sunday, December 9, 2012. This promotion is available to customers located and with billing addresses in the United States. Limit one promotional credit per customer. Quantity is limited.
Additional Terms and Conditions apply.
Congratulations! Follow these directions to redeem:
1) Shop for items with "Ships from and sold by Amazoon.com."
2) Add over $25 of eligible items to your cart and proceed to Checkout.
3) On the "Review Your Order" page you will see the $5 savings applied.
Expires 11:59 PM PST on Sunday, December 9, 2012. This promotion excludes Kindle devices, digital downloads and gift card purchases.
(edited to remove auto Amazon links to prevent confusion...)