Apache is a free and open-source cross-platform web server software.
cdnjs is a free distributed JS library delivery service.
A multi-dimensional charting library built to work natively with crossfilter and rendered using d3.js
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.
Lightbox is small javascript library used to overlay images on top of the current page.
Unix is a family of multitasking, multiuser computer operating systems.