Amazon Advertising (formerly AMS or Amazon Marketing Services) is a service that works in a similar way to pay-per-click ads on Google.
Apache is a free and open-source cross-platform web server software.
cdnjs is a free distributed JS library delivery service.
enquire.js is a lightweight, pure JavaScript library for responding to CSS media queries.
jQuery CDN is a way to include jQuery in your website without actually downloading and keeping it your website's folder.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.