Apache is a free and open-source cross-platform web server software.
Google Analytics is a free web analytics service that tracks and reports website traffic.
PHP is a general-purpose scripting language used for web development.
Red Hat is an open-source Linux operating system.
Twitter is a 'microblogging' system that allows you to send and receive short posts called tweets.
Wistia is designed exclusively to serve companies using video on their websites for marketing, support, and sales.