Providing online non-downloadable shopping management and marketing software featuring electronic online shopping carts; Application service providing featuring application programming interface (API) software for online retailers to monitor customer product viewing, additions of products to electronic online shopping carts, and product purchases and thereafter recommending similar products, recommending coordinating products, recommending higher cost products, providing discount options to the customer, and incentivizing increased customer purchases with tiered gifting; Designing webpages to maintain consistency across an online platforms of a retailer; Application service provider featuring application programming interface (API) software for retailers to recommended to customers best selling products, new products, products related to recent customer viewing and purchasing trends, and re-displaying products recently viewed by the customer; Application service provider featuring application programming interface (API) software for offering goods after checkout to be added to the checkout; Application service provider featuring application programming interface (API) software for linking e-commerce websites to credit card processing networks; Providing online non-downloadable computer software for delivering e-commerce capabilities, namely, software that allows third parties to implement online shopping carts; Developing and hosting a server on a global computer network for the purpose of facilitating e-commerce via such a server; Providing an online non-downloadable Internet-based system application featuring technology enabling users to add, remove, swap, and view recommended items in their shopping cart; Application service provider featuring application programming interface (API) software for recommending products; Computer services, namely, providing an interactive web site featuring technology that allows users to consolidate and manage social networks, accounts, and connections to existing and emerging APIs; Designing and developing webpages on the internet; Application service provider featuring an API utilizing a countdown timer to incentivize increased purchases; Application service provider featuring application programming interface (API) software for linking e-commerce websites to credit card processing networks