This thread at FatWallet points out the following offer for the Citi Platinum Select AAdvantage Card:

• No annual fee for the first year, $85/year afterwards
• Earn 20,000 bonus miles after your first purchase
• An AAdvantage(R) mile for every $1 spent on purchases
• Reduced Mileage Awards on American Airlines

The standard offer for the Citi Platinum Select AAdvantage® card is for 15,000 miles on first purchase with no waiver of the first year’s annual fee, so this seems like a good deal if you’re in the market for this card.

The direct link to this offer is here.