How do I add PayPal to my website?

First, sign up for a PayPal Merchant Account. From there go to the Merchant area, then click...

 What are the components of Online Credit Card Processing?

There are five areas of online credit card processing:   Customers Credit Card -...

 What are the Payment Gateways for CubeCart?

2checkout, PayPal, and Worldpay.

 What are the Payment Gateways For ZenCart?

LinkPoint YourPay,  AIM, SIM Paypal...

 What Payment Gateways are supported by OScommerce?

TrustTcommerce, SECPay, PSiGate, Ipayment,, Paypal, 2CheckOut, and Chronopay.