Being reported on Dan's Deals.....
"American Express is bringing back Small Business Saturday this year with $25 credits for spending at small businesses on 11/26 (always like a nice b-day present, thank AMEX!)"
"Last year the $25 credit worked once for every AMEX card, including on additional cards and AMEX cards issued by other banks like from Citi. They also extended to spending period from just the day after black friday until the end of the year. The exact details for this year’s program are unknown at this point, but I’ll be sure to post them as they come in!"
http://www.dansdeals.com/archives/16597