Ideal for those who are just starting out and need help creating a site. These solutions are easy to install and simple to manage—even if you have no technical knowledge. And, they already have PayPal integrated.
Custom built shopping carts:
Ideal if you already have a website that you want use to sell products or services. If you’re a medium sized business with a little more technical know-how, these carts offer more sophisticated solutions for your online business.
Carts for developers:
If you’re thinking of contacting an expert to set a very powerful, customizable and flexible online store, these are the best open source solutions. PayPal has built specific modules for each of these platforms, with the best practices for businesses.