Credit Card Gateway
The online equivalent of the credit card swipe machine.
Once you have a merchant account, you will need the services of a gateway. PayPal is an exception. PayPal bundles merchant account and gateway services together.
Not all merchant accounts work with all gateways. A question you must ask a prospective merchant account company is what gateways they support.
Relatively inexpensive. Worth checking out.
The above two links take you to two of the biggest credit card processing companies. Browse these two sites and you will know more than most about the credit card end of e-commerce.
I strongly urge you to contact each of the companies below and get very detailed information on ALL the fees involved. If you find one of the companies listed below significantly better or worse than the others, I encourage you to post your findings on this course's bulletin board. I continue to drop companies if they receive bad ratings from students. I add companies from time to time based on recommendations.
Payment Resources International
(referred by Ty Nunez of www.zoovy.com)
* Also referred by httpme and Hood River WaterPlay