Apache is a free and open-source cross-platform web server software.
D3 based reusable chart library
Google AdSense is a program run by Google through which website publishers serve advertisements that are targeted to the site content and audience.
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.
PHP is a general-purpose scripting language used for web development.
phpBB is a free open-source Internet forum package in the PHP scripting language.
Varnish is a reverse caching proxy.