credit card comparison

I am working with the publisher of a small journal. We need to make arrangements to accept credit card payments for subscriptions and advertisements.

How do I do this? What are the search terms I’d put into Yahoo or Google? (If I just enter “open credit card account”, most of the links assume I want to get my own personal credit card.)

Are there any sites which list fees for multiple banks so that I can do comparison shopping to find an account with low fees?

Thanks.