Merchant providers offer payment gateways for accepting credit cards, so you will need to sign up with one. We use and reccomend a company called CDGcommerce.
CDGcommerce offers Internet merchants a turnkey, easy-to-use solution for Internet merchant processing including the industry's ONLY FREE Payment Gateway & FREE Verified by Visa/MasterCard SecureCode program along with the best customer service & technical support in the industry.
1. FREE Internet Payment Gateway
2. NO Per Gateway Transaction Fees
3. FREE Cardholder Authentication
4. INSTANT Gateway Activation
Setup Fee: FREE
Qualified Rate: 2.25% + $0.30
Mid Qualified Rate: N/A
Non Qualified Rate: 3.75% + $0.40