A system and method for using a communications network with a server and a database to provide income-generating business card and referral card network. In one embodiment, a credit card issuer provides a set of personalized business cards to a first customer for his use, upon qualifying the first customer for a credit card from the card issuer. The business cards can be used to receive a discount from a merchant within certain network affiliated with the card issuer. At the same time, the business cards provide a linkage to the first customer's account, so that the first customer will receive a credit to his account, based on the second customer's use of the business card at an affiliated merchant. The second customer is then invited to apply for a credit card from the card issuer. If the second customer qualifies and accepts the credit card, the second customer receives his own set of personalized business cards for distribution. Whenever the second customer uses his credit card anywhere, another credit is applied to the first customer. Also, whenever a third customer uses the second customer's business card during a commercial transaction, the second customer will receive a credit in his account. If the third customer also becomes a credit card holder from the card issuer, the second customer will then receive a credit whenever the third customer uses his credit card anywhere. The system may be set up so that the customers who refer continue to receive credits whenever customers from one or more levels below use the business cards for discounts, or use their own credit cards.