Hey guys,
I'm going to use my site to drive my offline business, what is a good way to handle credit cards online? I will be using this as my processing terminal when I make my appointments with customers.
You could use a merchant account that has access to an online gateway. For example, I use e-onlinedata which uses the authorizenet gateway.
I can process transactions online by logging into authorize.net or I can send customers to a secure order form on my site and have them fill their their payment information and get an instant authorization for the amount.
I can also setup a shopping cart and easily integrate it so that the shopping cart talks to the authorizenet gateway which talks to the customer bank all in realtime and approves/denies transactions on the fly.
I can also setup an invoicing system like through freshbooks.com (I use them for invoicing some clients) and the freshbooks online invoicing system will integrate with the authorizenet gateway so that a customer can click a link, go to a secure website and view their invoice and make a payment.
I also use PayPal to do all the same stuff for those customers that prefer to pay with PayPal, but I also have a merchant account for those customers who don't want to use PayPal.