This is pretty brilliant:
Shop Small for Chocolate at DansDeals
A chocolate company in Miami is offering to make 3x$5 charges on each of your Amex cards to take advantage of Shop Small August. Of course, it requires you to hand over your card numbers to a unknown merchant, so I don't think I'd recommend it. Clever marketing all the same, as there are probably a good number of people in the audience of DansDeals that are likely to jump at the chance to get some chocolate compliments of Amex.
Note: This was a paid advertisement at DansDeals, a commercial site that promotes credit card signups, etc. I don't receive any compensation for sharing it, I just think it's clever marketing.