In 2005, the $5.2 billion American Airlines Federal Credit Union was one of the last large-asset credit unions to start a card program. Now the five year old program has topped $100 million in assets.

"In this tough economic climate, we're thrilled that we've created an overall Credit Card program that acts as a safe harbor for members, protecting them from the predatory practices common in this industry," said Nancy Crouch, director of card services for AA Credit Union. "That's one of the many reasons credit unions are thriving despite the challenges."

The credit union reported that while it began with one platinum card that offered a rewards program, it has since grown to several platinum offerings. It began offering a low-rate Platinum Card product two years ago. The product provides a low-cost way for members to finance their credit card debt. That program has already generated $30 million in outstanding balances.

AA also offers members with nonexistent credit or credit difficulties a share secured card to help them build, or rebuild, their credit history.