This document provides information about shopping carts and e-commerce platforms. It discusses the benefits of using a shopping cart software, including ease of use, saving time and money, support, boosting sales, accepting multiple currencies, and additional apps. It then evaluates and reviews several popular e-commerce shopping cart platforms: Shopify, Bigcommerce, Magento, WooCommerce, and OpenCart. For each one it provides pros and cons as well as links to more detailed reviews.