Apache is a free and open-source cross-platform web server software.
Font Awesome is a font and icon toolkit based on CSS and Less.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Open Graph is a protocol that is used to integrate any web page into the social graph.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.
Silverstripe CMS is a free and open source Content Management System and Framework for creating and maintaining websites and web applications.
Typekit is an online service which offers a subscription library of fonts.