Now, you can redeem e-rewards for AA miles every 90 days, not once a year.

Here is what it says:
Claim American Airlines® rewards more often.
As you may know, e-Rewards' program rules allow you to redeem one reward per sponsor each calendar year. Now American Airlines®, our newest sponsor, invites you to quadruple your rewards: Once every 90 days, you may redeem $25 or $50 of e-Rewards currency for an opportunity to qualify for 1,000 or 2,500 bonus AAdvantage® miles* respectively when you purchase your qualifying flights at AA.com. That's up to four AAdvantage rewards per calendar year. It's a special benefit, only from American Airlines.

Also posted on AA forum.