I'm not sure if this was posted here yet, but Amex is keeping all of us pretty busy these days. I first saw this on Flyertalk.
This is a targeted offer:
Make 15 transactions on your card in a calendar month and get 10,000 bonus points
Runs July – November 2011
50,000 point maximum
Some report that it is for accounts opened July 2011 and later, but there are some with accounts opened earlier than that who have qualified.
Seems to just work so far for Gold personal cards
Call and ask if offer 6664 can be applied to your account!