Amazon S3 or Amazon Simple Storage Service is a service offered by Amazon Web Services (AWS) that provides object storage through a web service interface.
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.
Optimizely is an experimentation platform that helps developers build and run A/B tests on websites.
Phusion Passenger is a free web server and application server with support for Ruby, Python and Node.js.
Unix is a family of multitasking, multiuser computer operating systems.