Apache is a free and open-source cross-platform web server software.
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.
GSAP is an animation library that allows you to create animations with JavaScript.
Mod_dav is an Apache module to provide WebDAV capabilities for your Apache web server. It is an open-source module, provided under an Apache-style license.
PHP is a general-purpose scripting language used for web development.
Typekit is an online service which offers a subscription library of fonts.
Unix is a family of multitasking, multiuser computer operating systems.