I just want to point out to folks that the Amex/Sony offer that I discussed here is still alive. It now also appears on the Facebook "Amex Sync" page. Remember that Amex only allows one credit per card (including authorized user cards) across all media channels. That means if you have already redeemed the deal through Twitter, you can't get it again on the same card. Still, if you have multiple cards/authorized users, there's an opportunity to make approx. $11 per card.