If you want to sell products on your blog then you will need to find the right shopping cart software. One of the most popular blog products is Wordpress. There are several options for a Wordpress shopping cart. This software is great for integrating with companies such as Paypal for payment processing. Most people who transact online have a Paypal account so you shouldn’t have a problem with people not being setup to use this system. It is also quick and easy to get up and running.