The Gold Card from American Express OPEN
Receive 5% cash back on eligible purchases for the first three months of Card membership. You can earn up to $200 cash back. The cash back will appear on your statement as one lump sum on the fourth month of Card membership as credits.
Bonus terms as copied from website on 12/4/2008:
Bonus of 5% cash back on each purchase applies to all eligible purchases made for the first three months of Card membership. The statement credits will appear on your monthly billing statement as one lump sum on the fourth month of Card membership. The maximum cash back available is $200 per Card account. This promotional offer pertains to a specific American Express® Business Card product, please reference the OPEN Savings® summary on your monthly billing statement or online at open.americanexpress.com to determine Card eligibility. You may be permitted to have more than one American Express® Business Card account, however, you are eligible to receive only one promotional 5% cash back offer up to $200 per unique business.