AddThis is a social bookmarking service that can be integrated into a website with the use of a web widget.
Amazon Elastic Compute Cloud is a part of Amazon.com's cloud-computing platform, Amazon Web Services, that allows users to rent virtual computers on which to run their own computer applications.
Apache is a free and open-source cross-platform web server software.
Drupal is a free and open-source web content management framework.
PHP is a general-purpose scripting language used for web development.
Typekit is an online service which offers a subscription library of fonts.