If you own a business and you advertise, the card you should be using to pay the advertising charges is the American Express Business Gold Rewards Card.
You will earn extra Membership Rewards points if you use this card to pay for advertising. You see as of January 2015, you can choose one of the five categories to earn 3x Membership Rewards points per $1. These categories are…
Airfare purchased directly from airlines
Computer hardware, software and cloud computing purchases.
You earn 2x Membership Rewards points in the remaining four categories and 1x points on all other purchases. So even if you don’t make advertising your 3x category, you will still earn 2x points on all advertising paid for with this card.
If you advertise for your business a lot, I should note that there is an annual advertising spend limit of $100,000 (200,000 bonus point limit). Once you hit $100,000 in advertising in a given calendar year, you earn 1 point per dollar spent on advertising. The triple or double points resumes again each year on January 1st. Learn More About The Card Here.