Apache is a free and open-source cross-platform web server software.
Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
Chosen is a jQuery plugin that makes long, unwieldy select boxes much more user-friendly.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
Google Font API is a web service that supports open-source font files that can be used on your web designs.
Google Hosted Libraries is a stable, reliable, high-speed, globally available content distribution network for the most popular, open-source JavaScript libraries.
MODX (originally MODx) is an open source content management system and web application framework for publishing content on the World Wide Web and intranets.