Apache is a free and open-source cross-platform web server software.
Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Shopware is an enterprise-level ecommerce platform.
A modest JavaScript framework for the HTML you already have.
Trusted Shops is a company that acts as a 3'rd party representing the common interests of both consumers and retailers.