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.
A multi-dimensional charting library built to work natively with crossfilter and rendered using d3.js
DoubleClick Ad Exchange is a real-time marketplace to buy and sell display advertising space.
Drupal is a free and open-source web content management framework.
Google AdSense is a program run by Google through which website publishers serve advertisements that are targeted to the site content and audience.
PHP is a general-purpose scripting language used for web development.