Forum Moderators: buckworks
-D
LinkPoint, Authorizenet.com are both electronic payment gateways. They will help to verify the transaction.
The merchant account provider (MAP) will actually help you to accept credit cards on your site, giving you your own MID.
In essence, you need the three things above. Of course, you can always use LinkPoint's or Authorizenet.com own secure webpage to capture the data but that takes the user off of your website. And it seems you want to maintain consistency. They all offer an API to be integrated into your cart to help capture the data.
-Corey