This webminar linked here by PayPal Channel Account Manager Matt Watts and PayPal Engineer Mike Suarez will give talk about shopping carts.  There are two general types of shopping carts. One type is a software cart where you purchase or download software code which a developer would customize and integrate into your web host.  The second type is a hosted shopping cart platform where you might need to pay a third-party provider a monthly fee.   Matt talks about the questions that you have to ask in order to choose a shopping cart.

The webminar then talks about adding PayPal shopping cart to a website.  The simplest was is to use the "Add to Cart" button using PayPal button generator.

Next the webminar talks about the different ways in which you can integrate Paypal Website Payment Pro and to grant API permission.