Set up an Online Payment System With a Simple Payment Button

The Simple Payment Button helps you embed a payment system into your site without needing to set up a full store. This allows your customers to submit their payments with the click of a button, and you’ll receive each payment via your PayPal account.

WordPress eCommerce: The Definitive Guide

From choosing a platform to ramping up traffic and sales, this guide has the best collection of ecommerce WordPress plugins and resources.

Source: WordPress eCommerce: The Definitive Guide