AddThis is a social bookmarking service that can be integrated into a website with the use of a web widget.
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.
Lightbox is small javascript library used to overlay images on top of the current page.
Magento is an open-source ecommerce platform written in PHP.
Prototype is a JavaScript Framework that aims to ease development of web applications.