If you run an ecommerce site, then you’re going to need a payment gateway, there’s no way around it. If you’re a newbie to the world of payments, this may seem extremely complicated and out of you league. The truth is, payment gateways aren’t as nearly complex as you may have initially believed. Here’s a closer look at what payment gateways are and why they’re important for eCommerce sites. You will also find out how you can get started with your payment gateways immediately. What Is a Payment Gateway? “A payment gateway is the service that sends all of your credit card transactions to your credit card processors,” writes Will Lipovsky in a  previous Due post . “It also sends you a message from your credit card processor that lets you know a transaction has been authorized. There are even some payment gateways that will automatically add tax and screen for fraud.” In other words, a payment gateway is simply a software application. It’s basically a conduit between an eComme...